Potassium Iodide
比照化合物 1 之製造方法過程,而以 aniline (9.313g,0.1mole) 替代 3-methoxyaniline 進行之,
得到白色結晶18.29g,產率 74%;融點 (mp):115~116°C;光譜數據如下 MS(m/z ):247(M+);
Ethyl 2-(3-chloroanilino)-4-oxo-4,5-dihydrofuran-3-carboxylate (3) 之合成
N O
比照化合物 1 之製造方法過程,而以 3-chloroaniline (12.57g,0.1 mole) 替代 3-methoxy- aniline 進行之,得到白色針狀結晶22.81 克,產率 81%;融點(mp):159.5°C;光譜數據如下 MS(m/z ):
283 (M++1); IR(KBr disc) cm-1: 3170.96 (-NH-), 1695.44 (C4=O), 1628.06 (C3-CO-OEt); UVλmax
nm (MeOH)(㏒ ε): 297 (4.523); 1H-NMR (200MHz,CDCl3) δ: 1.354 (3H, t, J=7.1Hz, H-2”), 4.336 (2H, q, J=7.1 Hz, H-1”), 4.677 (2H, s, H-5), 7.156~7.34 (3H, m, H-4’, H-5’, H-6’), 7.437 (1H, d, H-2’), 10.302 (1H, s, -NH-);13C-NMR (200MHz, CDCl3) δ: 14.21 (C-2”), 60.48 (C-1”), 75.37 (C-5), 87.75 (C-3), 119.08 (C-6’), 121.12 (C-2’), 125.85 (C-4’), 130.24 (C-5’), 134.93 (C-3’), 135.77 (C-1’), 165.29 (C-2), 177.58 (C-3”), 188.04 (C-4)。
Ethyl 2-(3-hydroxyanilino)-4-oxo-4,5-dihydrofuran-3-carboxylate (4) 之合成
N O
比照化合物 1 之製造方法過程,而以 3-hydroxyaniline(10.9g,0.1 mole) 替代 3-methoxy- aniline 進行之,得到白色針狀結晶20.79 克,產率 79%;融點(mp):210~211°C; 光譜數據如下 MS(m/z,
%): 263.9 (M++1 ,14.94), 262.9 (M+, 52.87); IR(KBr disc) cm-1: 3283 (-NH-), 1661.43 (C4=O), 1628.9 (C3-CO-OEt); UVλmax nm(MeOH)(㏒ ε): 296 (4.284); 1H-NMR (200MHz,CDCl3)δ:1.19 (3H, t, J=7.2Hz, H-2”), 4.15 (2H, q, J=7.2 Hz, H-1”), 4.65 (2H, s, H-5), 6.6 (1H, d, J=7.8Hz, H-6’), 6.85 (1H, d, J=7.8Hz, H-4’), 6.8 (1H, s, H-2’), 7.14 (1H, t, J=7.8Hz, H-5′), 9.69 (1H, s, -NH-), 10.1(1H, s, 3’-OH-); 13C-NMR (200MHz,DMSO-d6) δ: 14.81 (C-2”), 59.67 (C-1”), 75.62 (C-5), 87.18 (C-3), 110.10 (C-6’), 113.55 (C-2’), 113.69 (C-4’), 130.28 (C-5’), 136.37 (C-1’), 158.34 (C-3’), 164.56 (C-2), 177.47 (C-3”), 188.96(C-4)。
Ethyl 2-(2-methylanilino)-4-oxo-4,5-dihydrofuran-3-carboxylate (5) 之合成
N O
比照化合物 1 之製造方法過程,而以 2-methylaniline ( 10.71g,0.1 mole) 替代 3-methoxy- aniline 進行之,得到白色結晶 18.55g,融點(mp):118.~119 °C;光譜數據如下 MS(m/z ):262 (M++1 ,8.81), 261 (M+,40.95); IR(KBr disc) cm-1 3169.35 (-NH-),1703.62 (C4=O), 1651.96 (C3-CO-OEt); UVλmax nm (MeOH)(㏒ ε): 294.5(4.1717); 1H-NMR (200MHz,DMSO-d6) δ: 1.245 (3H, t, J=7Hz, H-2”), 2.29 (3H, s, 2’-CH3), 4.035 (2H, q, J=7 Hz, H-1”), 4.62 (2H, s, H-2), 7.208~7.447 (4H, m, H-3’,H-4’,H-5’,H-6’), 10.15(1H, s, -NH-); 13C-NMR (200MHz, DMSO-d6)δ:
14.69 (C-2”), 17.65 (2’-CH3), 59.32 (C-1”), 75.24 (C-5), 86.67 (C-3), 125.46 (C-6’), 126.77 (C-4’),
N O
比照化合物 1 之製造方法過程,而以 3’,4’-dimethylaniline (12.11g,0.1 mole) 替代 3-methoxy aniline 進行之,得到淡黃色塊結晶 22.02 克,產率 80%;融點 (mp):114~116°C;光譜數據 如下MS(m/z ): 275(M+), IR(KBr disc) cm-1: 3257.6 (-NH-), 1706.9 (C4=O), 1649.0 (C3-CO-OEt);
UVλmax nm(CHCl3)(㏒ε): 283 (4.68)1; H-NMR(200MHz,CDCl3)δ: 1.368 (3H, t, J=7Hz, H-2”), 2.230 (3H, s, 4’-CH3), 2.247 (3H, s, 3’-CH3), 4.346 (2H, q, J=7.0Hz, H-1”), 4.633 (2H, s, H-5), 7.104 (3H, s, H-2′, H-5′, H-6′), 10.15(1H, s, NH); 13C-NMR (200MHz, CDCl3) δ: 14.28 (C-2”), 19.0 (3’-CH3), 19.62 (4’-CH3), 60.26 (C-1”), 75.15 (C-5), 87.13 (C-3), 118.74 (C-6’), 122.54 (C-2’), 130.17 (C-5’), 132.53 (C-4’), 134.67 (C-3’), 137.71 (C-1’), 165.35 (C-2), 177.25 (C-3”), 188.15 (C-4)。
Ethyl 2-(3’,5’-dimethylanilino)-4-oxo-4,5-dihydrofuran-3-carboxylate (7) 之合成
N O
比照化合物 1 之製造方法過程,而以 3’,5’-dimethylaniline (12.11g,0.1 mole) 替代 3-methoxy aniline 進行之,得到透明塊結晶 21.74g,產率 79%;融點(mp):144~147°C;光譜數據如下 MS (m/z ): 275 (M+), IR(KBr disc) cm-1: 3251.5 (-NH-), 1708.6 (C4=O), 1662.8 (C3-CO-OEt); UV λmax nm(CHCl3) (㏒ε): 283 (4.45); 1H-NMR(200MHz,CDCl3) δ: 1.240 (3H, t, J=7.0Hz, H-2”), 2.256 (6H, s, C3′-CH3, C5′-CH3), 4.202 (2H, q, J=7.0Hz, H-1”), 4.67 (2H, s, H-5), 6.88 (1H, s, H-4′), 7.05 (2H, s, H-2′, H-6′), 10.127 (1H, s, NH); 13C-NMR (200MHz, DMSO-d6) δ: 14.62 (C-2”), 21.04 (3’-CH3, 5’-CH3), 59.41 (C-1”), 75.41 (C-5), 86.85 (C-3), 120.58 (C-2’, C-6’), 127.73 (C-4’), 135.03 (C-1’), 135.03 (C-3’, C-5’), 164.32 (C-2), 177.25 (C-3”), 188.65 (C-4)。
Ethyl 2-(3’,5’-dimethoxyanilino)-4-oxo-4,5-dihydrofuran-3-carboxylate (8) 之合成
N O
比照化合物 1 之製造方法過程,而以 3’,5’-dimethoxy aniline (15.31g,0.1 mole) 替代 3-methoxyaniline 進行之,得到白色結晶 22.74,產率 74%;融點(mp):145.6 °C;光譜數據如 下: MS(m/z ): 307 (M+ , 25.15), 308 (M++1, 4.03); IR(KBr disc ) cm-1: 3436.3 (-NH-), 1701.3 165.41 (C-2), 177.45 (C-3”), 188.16 (C-4)。
Ethyl 2-(3’,4’,5’-trimethroxyanilino)-4-oxo-4,5-dihydrofuran-3-carboxylate (9) 之合成
N O
比照化合物 1 之製造方法過程,而以 3’,4’,5’-trimethroxyaniline (18.3g,0.1 mole) 替代 3-methoxyaniline 進行之,得到得到白色綿絮狀產物 25.23 克,產率 75%;融點(mp):163.3°C;
光譜數據如下MS(m/z ): 337 (M+ , 18.30), 338 (M++1, 3.27); IR(KBr disc ) cm-1: 3223.7(-NH-), 1698.7 (C4=O), 1654.4 (C3-CO-OEt); UVλmax nm(CHCl3) (㏒ε)
: 282 (4.238);
1H-NMR(200MHz, CDCl3)δ: 1.379 (3H, t, J=7.2Hz, H-2”), 3.82 (3H, s, 4’-OCH3), 3.844 (6H, s, 3’-OCH3, 5’-OCH3), 4.36 (2H, q, J=7Hz, H-1”), 4.67 (2H, s, H-5), 6.586 (2H, H-2’, H-6´), 10.21(1H, s, NH); 13C-NMR (200MHz,CDCl ) δ: 14.26 (C-2”), 56.05 (3’-OCH , 5’-OCH ), 60.43 (C-1”), 60.75 (4’-OCH),N O
(a) 製作 Ethyl 2-(2-nitrophenyl)acetate
取2-(2-nitrophenyl)acetic acid (18.1g , 0.1mole),溶於 95%乙醇溶液 200ml 中,保持於低溫 8°C,緩慢滴加 98%濃硫酸 20ml,攪拌 1 小時,水浴加熱迴流 4 小時,然後室溫下攪拌 1~2 天,以 TLC 檢查反應情形,減壓加熱除去乙醇溶液,殘渣緩慢加入冰水,用氯仿 CHCl3 萃取多次,萃取液加無水硫酸鎂 MgSO4乾燥,減壓濃縮去除 CHCl3,得淡黃色塊狀凝固 物Ethyl 2-(2-nitrophenyl)acetate (16.9 g , 81% ).
(b) 製作 Ethyl 2-(2-aminophenyl)acetate
取Ethyl 2-(2-nitrophenyl)acetate (10.5g , 0.1mole),置於強化玻璃瓶中,加乙醇溶液 50ml 及10%鈀 Pd.( Palladium)/碳混合物 1.0g 當作催化劑,裝置於氫化機後,通氫氣進行氫化反 應,以 TLC 檢查反應情形,反應完成後,過濾除去鈀 Pd.( Palladium)/碳混合物,減壓減 壓濃縮去除乙醇,得棕黃色粘綢液體。
(c) 與 ethyl 2-ethoxy-4-oxo-4,5-dihydrofuran-3-carboxylate (I)縮合反應
取NaH(60%,8.0g,0.2 mole)懸著於無水之 THF 40ml 中後,緩慢滴入 diethyl malonate
(32.0g,0.2 mole)與 THF 50ml 之混合溶液,當滴加完後冷卻至 10-12℃,再慢慢滴加 chloroacetyl chloride(11.3g,0.1 mole)之 THF 100ml 溶液,滴加完後保持低溫(10-12℃)
一小時,隨後改用溫水(40-45℃)溫之,約一小時,再冷卻至 10-12℃。將剛新鮮製成粗 產物Ethyl 2-(2-aminophenyl)acetate 0.1mole 之 THF 50ml 溶液滴入上述反應液中,於室溫 攪拌一小時後,在水浴上加熱幾小時,用TLC 檢驗反應是否完成,然後減壓濃縮去除大
J=7Hz, H-2”), 3.763(2H, s, H-7’), 4.049 (2H, q, J=7Hz, H-9’), 4.192(2H, q, J=7Hz, H-2”),
4.573 (2H, s, H-5), 7.321~7.453(4H, m, H-3′, H-4′, H-5′, H-6′), 10.115 (1H, s, NH); 13C-NMR (200MHz,DMSO-d6) δ: 14.09 (C-10’), 14.65 (C-2”), 37.29 (C-7’), 56.30 (C-1”), 60.96 (C-9’), 75.17 (C-5’), 86.93 (C-3), 126.79 (C-6’), 127.64 (C-4’), 128.17 (C-2’), 130.33 (C-3’), 131.44 (C-5’), 134.03 (C-1’), 164.09 (C-2), 170.88 (C-8’), 177.90 (C-3”), 188.98 (C-4)。( 二 ) Ethyl 2-[N-various benzyl-(3’-methoxy)]anilino-4-oxo-4,5-dihydro- furan-3-carboxylate ( 11~26) 之合成
Ethyl 2-[N-benzyl-(3’-methoxy)]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (11)之合成
N O 及KI(0.83g,0.005mole)攪拌之,接著加入及 benzyl chloride(0.886g,0.007 mole),反應 1~2 小時,以 TLC 檢查反應之進度。然後加冰水 100ml,靜置讓其沉澱析出,用布氏漏斗減壓抽氣 過濾沉澱物,以清水洗 1~2 遍,以冰冷乙醇稍微浸泡沉澱物幾秒鐘溶解掉沉澱物表面之可溶 性雜質,減壓抽氣移除乙醇,剩餘沉澱物再用乙醇做再結晶,得白色結晶產物,為化合物 11 (0.62gm,33.8%),mp:116.1℃。其光學數據如下:IR (KBr disc) cm-1: 1732.08 (C4=O), 1662.64 (C3-CO-OEt); UVλmax nm (MeOH) (㏒ε): 294.5 (4.036); 1H-NMR(200MHz, DMSO-d6) δ:
0.861 (3H, t, 2”), 3.414 (2H, q, H-1”), 3.676 (3H, s, 3’-OCH3), 4.710 (2H, s, H-5), 5.150 (2H, s, H-7), 6.794~6.873 (3H, m, H-2’, H-4’, H-6’), 7.180~7.302 (6H, m, H-5’, H-9, H-10, H-11, H-12, H-13); 13C-NMR (200MHz,DMSO d6 ) δ: 13.95 (C-2”), 54.51 (C-7), 55.48 (3’-OCH3), 59.48 (C-1”), 74.64 (C-5), 91.08 (C-3), 111.26 (C-2’), 112.83 (C-4’), 117.46 (C-6’), 127.73 (C-10 C-11, C-12,), 128.75 (C-9, C-13), 130.22(C-5’), 136.17 (C-8), 143.07 (C-1’), 160.02 (C-3’), 161.72 (C-2), 176.49 (C-3”), 191.72 (C-4)。
Ethyl 2-[N-o-methyl-(3’-methoxy)]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (12)之合成
N O
取化合物 1 (1.386g,0.005 mole)和 o -methylbenzyl chloride ( 0.984g,0.007 mole)為原料,比照 化合物 11 的合成法及處理步驟,得白色產物,為化合物 12 (0.65g,34.1%),mp:147.2℃。 117.24 (C-6’), 126.30 (C-12), 126.69 (C-11), 127.47 (C-13), 130.20 (C-5’), 130.38 (C-10), 134.26 (C-9), 135.53 (C-8), 143.34 (C-1’), 159.96 (C-3’), 161.78 (C-2), 176.55 (C-3”), 191.70 (C-4)。
Ethyl 2-[N-m-methyl-(3’-methoxy)]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (13)之合成
N O
取化合物 1 (1.386g,0.005 mole)和 m -methylbenzyl chloride ( 0.984g,0.007 mole)為原料,比 照化合物 11 的合成法及處理步驟,得白色產物,為化合物 13 (0.85g,44.6%),mp:104.7℃。
其光學數據如下:MS (m/z, %): 380.9 (M+); IR (KBr disc) cm-1: 1681.93 (C4=O), 1602.85
(3’-OCH3), 60.13 (C-1”), 74.10 (C-5), 91.60 (C-3), 110.69 (C-2’), 113.10 (C-4’), 117.12 (C-6’), 124.30 (C-13), 127.94 (C-12), 128.45 (C-9, C-11), 129.96 (C-5’), 135.20 (C-8), 138.28 (C-10), 143.14 (C-1’), 160.10 (C-3’), 161.85 (C-2), 176.53 (C-3”), 191.80 (C-4)。
Ethyl 2-[N-p-methyl-(3’-methoxy)]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (14)之合成
N O
取化合物 1 (1.386g,0.005 mole)和 p -methylbenzyl chloride ( 0.984g,0.007 mole)為原料,比照 化合物 11 的合成法及處理步驟,得白色產物,為化合物 14 (0.67g,35.1%),mp:110℃。其 光學數據如下:MS (m/z ,% ): 381.8 (M+) ; IR (KBr disc) cm-1: 1718.58 (C4=O), 1589.34 117.26 (C-6’), 127.45 (C-9, C-13), 129.18 (C-10, C-12), 129.96 (C-5’), 132.11 (C-11), 137.57 (C-8), 142.99 (C-1’), 160.10 (C-3’), 161.86 (C-2), 176.43 (C-3”), 191.77 (C-4)。
Ethyl 2-[N-o-chlorol-(3’-methoxy)]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (15)之合成
N O
取化合物 1 (1.386g,0.005 mole)和 o -chlorobenzyl chloride (1.127g,0.007mole)為原料,比照
化合物 11 的合成法及處理步驟,得白色產物,為化合物 15 (0.83g,41.3%),mp:149.5℃。 127.73 (C-12), 129.27 (C-11), 129.55 (C-13), 129.65 (C-10), 130.25 (C-5’), 132.05 (C-9), 133.41 (C-8), 142.80 (C-1’), 159.99 (C-3’), 161.76 (C-2), 176.51 (C-3”), 191.78 (C-4)。
Ethyl 2-[N-m-chlorol-(3’-methoxy)]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (16)之合成
N O
取化合物 1 (1.386g,0.005 mole)和 m -chlorobenzyl chloride (1.127g,0.007mole)為原料,比照 化合物 11 的合成法及處理步驟,得白色產物,為化合物 16 (0.81g,40.3%),mp:126.3℃。 125.49 (C-13), 127.55 (C-11), 128.05 (C-9), 129.86 (C-12), 130.12 (C-5’), 134.45 (C-10), 137.28 (C-8), 142.79 (C-1’), 160.22 (C-3’), 161.74 (C-2), 176.53 (C-3”), 191.72 (C-4)。
N O
取化合物 1 (1.386g,0.005 mole)和 p -chlorobenzyl chloride (1.127g,0.007mole)為原料,比照 化合物 11 的合成法及處理步驟,得白色產物,為化合物 17 (0.89g,44.3%),mp:129.5℃。 60.19 (C-1”), 74.11 (C-5), 91.62 (C-3), 110.88 (C-2’), 113.12 (C-4’), 117.17 (C-6’), 128.75 (C-10, C-12), 128.95 (C-12, C-13), 130.12 (C-5), 133.65 (C-11), 133.79 (C-8), 142.69 (C-1’), 160.20 (C-3’), 161.78 (C-2), 176.50 (C-3”), 191.66 (C-4)。
Ethyl 2-[N-o-fluoro-(3’-methoxy)]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (18)之合成
N O
取化合物 1 (1.386g,0.005 mole)和 o -fluorobenzyl chloride (1.012g,0.007mole)為原料,比照 化合物 11 的合成法及處理步驟,得白色產物,為化合物 18 (0.48g,24.9%),mp:141.7℃。
其光學數據如下: MS (m/z): 385.9 (M+); IR (KBr disc) cm-1: 1712.79 (C4=O), 1680.00 (C3-CO-OEt); UVλmax nm (MeOH) (㏒ε): 293.5 (3.951); 1H-NMR(200MHz, CDCl3) δ: 1.012
(3H, t, 2”), 3.721 (3H, s, 3’-OCH3), 3.735 (2H, q, H-1”), 4.634 (2H, s, H-5), 5.170 (2H, s, H-7), 6.683~6.806 (3H, m, H-2’, H-4’, H-6’), 7.009~7.288 (5H, m, H-5’, H-10, H-11, H-12, H-13);
13C-NMR (200MHz,CDCl3 ) δ: 13.77 (C-2”), 49.42 (C-7), 55.17 (3’-OCH3), 60.18 (C-1”), 74.15 (C-5), 91.76 (C-3), 110.61 (C-2’), 113.24 (C-4’), 115.15 &115.57 (C-10), 117.05 (C-6’), 122.28
&122.57 (C-11), 124.21 (C-8), 129.04 &129.57 (C-13), 129.73 (C-12), 129.98 (C-5’), 142.72 (C-1’), 158.00 (C-9), 160.11 (C-3’), 161.82 (C-2), 176.65 (C-3”), 191.80 (C-4)。
Ethyl 2-[N-m-fluoro-(3’-methoxy)]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (19)之合成
N O
Formula: C21H20FNO5 Mol. Wt.: 385.39
HAJ01009
取化合物 1 (1.386g,0.005 mole)和 m - fluorobenzyl chloride (1.012g,0.007mole)為原料,比照 化合物 11 的合成法及處理步驟,得白色產物,為化合物 19 (0.73g,37.9%),mp:135.14。其 光 學 數 據 如 下 : MS (m/z ): 385.8 (M+); IR (KBr disc) cm-1: 1703.14 (C4=O), 1674.21 (C3-CO-OEt); UVλmax nm (MeOH) (㏒ε): 293 (4.110); 1H-NMR(200MHz, DMSO-d6) δ: 0.86 (3H, t, 2”), 3.42 (2H, q, H-1”), 3.457 (3H, s, 3’-OCH3), 4.706 (2H, s, H-5), 5.170 (2H, s, H-7), 6.806~6.896 (3H, m, H-2’, H-4’, H-6’), 7.097~7.228 (5H, m, H-5’, H-9, H-11, H-12, H-13);
13C-NMR (200MHz,DMSO d6 ) δ: 13.96 (C-2”), 53.82 (C-7), 55.52 (3’-OCH3), 59.49 (C-1”), 74.70 (C-5), 91.23 (C-3), 111.14 (C-2’), 112.84 (C-4’), 114.30 &114.38 (C-11), 114.74 (C-9), 117.32 (C-6’), 123.77 (C-13), 130.26 (C-5’), 130.65 & 130.81 (C-12), 139.11& 139.25 (C-8), 142.95 (C-1’), 160.05 (C-3’, C-10), 161.66 (C-2), 176.62 (C-3”), 191.83 (C-4)。
Ethyl 2-[N-p-fluoro-(3’-methoxy)]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (20)之合成
N O
取化合物 1 (1.386g,0.005 mole)和 p -fluorobenzyl chloride (1.012g,0.007mole)為原料,比照 化合物 11 的合成法及處理步驟,得白色產物,為化合物 20 (0.96g,49.8%),mp:110℃。其 光 學 數 據 如 下 : MS (m/z): 385.8 (M+); IR (KBr disc) cm-1: 1732.08 (C4=O), 1664.57 (C3-CO-OEt); UVλmax nm (MeOH) (㏒ε): 294.5 (4.064); 1H-NMR(200MHz, CDCl3) δ: 0.982 (3H, t, 2”), 3.699 (2H, q, H-1”), 3.706 (3H, s, 3’-OCH3), 4.62 (2H, s, H-5), 5.043 (2H, s, H-7), 6.624~6.799 (3H, m, H-2’, H-4’, H-6’), 6.930~7.236 (5H, m, H-5’, H-9, H-10, H-12, H-13);
13C-NMR (200MHz,CDCl3 ) δ: 13.77 (C-2”), 54.97 (C-7), 55.18 (3’-OCH3), 60.15 (C-1”), 74.08 (C-5), 91.53 (C-3), 110.99 (C-2’), 113.15 (C-4’), 115.25 & 115.68 (C-10, C-12), 117.31 (C-6’), 129.41 & 129.57 (C-9, C-13), 130.07 (C-5’), 130.91 (C-8), 142.60 (C-1’), 159.72 & 160.17 (C-3), 161.80 (C-2), 164.64 (C-11), 176.40 (C-3”), 191.65 (C-4)。
Ethyl 2-[N-o-nitro-(3’-methoxy)]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (21)之合成
N O
取化合物 1 (1.386g,0.005 mole)和 o -nitrobenzyl chloride (1.20g,0.007mole)為原料,比照化 合物 11 的合成法及處理步驟,得白色產物,為化合物 21 (0.84.g,40.7%),mp:189℃。其光 學數據如下: MS (m/z):411.8 (M+); IR (KBr disc) cm-1: 1714.72 (C4=O), 1683.86 (C3-CO-OEt);
UVλmax nm (MeOH) (㏒ε): 295 (4.050); 1H-NMR(200MHz, DMSO-d6) δ: 1.022 (3H, t, 2”), 3.753 (3H, s, 3’-OCH3), 3.765 (2H, q, H-1”), 4.574 (2H, s, H-5), 5.550 (2H, s, H-7), 6.732~6.824 (3H, m, H-2’, H-4’, H-6’), 7.213~7.294 (1H, t, H-5’), 7.50~7.698 (3H, m, H-11, H-12, H-13 ), 8.117~8.160(1H, d, H-10,); 13C-NMR (200MHz,CDCl3 ) δ: 13.78 (C-2”), 53.44 (C-7), 55.24
(3’-OCH3), 60.27 (C-1”), 74.28 (C-5), 92.33 (C-3), 109.77 (C-2’), 112.81 (C-4’), 115.86 (C-6’), 125.36 (C-10), 127.87 (C-11), 128.57 (C-13), 130.25 (C-5’), 131.95 (C-8), 134.07 (C-12), 113.55 (C-1’), 147.35 (C-9), 160.31 (C-3’), 161.56 (C-2), 177.08 (C-3”), 191.82 (C-4)。
Ethyl 2-[N-m-nitro-(3’-methoxy)]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (22)之合成
N O
取化合物 1 (1.386g,0.005 mole)和 m -nitrobenzyl chloride (1.20g,0.007mole)為原料,比照化 合物 11 的合成法及處理步驟,得白色產物,為化合物 22 (0.61g,29.6%),mp:135℃。其光 學數據如下:MS (m/z ,% ): 411.9 (M+, 10.33), 413.0 (M++1, 2.48), IR (KBr disc) cm-1: 1718.58 113.24 (C-4’), 117.01 (C-6’), 122.55 (C-11), 122.92 (C-9), 129.67 (C-12), 130.33 (C-5’), 133.42 (C-13), 137.37 (C-8), 142.43 (C-1’), 148.21 (C-10), 160.36 (C-3’), 161.69 (C-2), 176.65 (C-3”), 191.65 (C-4)。
Ethyl 2-[N-p-nitro-(3’-methoxy)]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (23)之合成
N O
取化合物 1 (1.386g,0.005 mole)和 p - nitrobenzyl chloride (1.20g,0.007mole)為原料,比照化 合物 11 的合成法及處理步驟,得淡黃色產物,為化合物 23 (1.15g,55.8%),mp:155℃。其 光學數據如下:MS (m/z ,% ): 411.9 (M+, 13.07), 412.9 (M++1, 3.24), IR (KBr disc) cm-1: 1701.22 113.04 (C-4’), 116.82 (C-6’), 123.81 (C-10, C-12), 128.21 (C-9, C-13), 130.30 (C-5’), 142.59 (C-1’, C-11), 147.42 (C-8), 160.33 (C-3’), 161.67 (C-2), 176.67 (C-3”), 191.65 (C-4)。
Ethyl 2-[N-o-methoxy-(3’-methoxy)]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (24)之合成
N O
取化合物 1 (1.386g,0.005 mole)和 o -methoxybenzyl chloride (1.096g,0.007mole)為原料,比 照化合物 11 的合成法及處理步驟,得白色產物,為化合物 24 (1.2g,60.4%),mp:159.2℃。
其光學數據如下:MS (m/z ,% ): 396.9 (M+, 4.06), 398 (M++1, 0.99), IR (KBr disc) cm-1: 1726.29 (C4=O), 1666.50 (C3-CO-OEt); UVλmax nm (MeOH) (㏒ε): 293 (3.924); 1H-NMR(200MHz, DMSO-d6) δ: 0.996 (3H, t, 2”), 3.697 (3H, s, 3’-OCH3), 3.705 (2H, q, H-1”), 3.727 (3H, s, 9-OCH3), 4.583 (2H, s, H-5), 5.104 (2H, s, H-7), 6.693~6.942 (5H, m, H-2’, H-4’, H-6’, H-10, H-12),
7.144~7.266 (3H, m, H-5’, H-11, H-13); 13C-NMR (200MHz,CDCl3 ) δ: 13.77 (C-2”), 51.19 (C-7), 55.00 (9-OCH3), 55.14 (3’-OCH3), 60.07 (C-1”), 74.09 (C-5), 91.65 (C-3), 110.05 (C-10), 110.37 (C-2’), 112.86 (C-4’), 116.87 (C-6’), 120.43 (C-12), 123.57 (C-8), 127.75 (C-11), 128.85 (C-13), 129.71 (C-5’), 143.37 (C-1’), 156.58 (C-9), 159.93 (C-3’), 161.97 (C-2), 176.79 (C-3”), 191.92 (C-4)。
Ethyl 2-[N-m-methoxy-(3’-methoxy)]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (25)之合成
N O
取化合物 1 (1.386g,0.005 mole) 和 m -methoxybenzyl chloride (1.096g,0.007mole)為原料,比 照化合物 11 的合成法及處理步驟,得白色產物,為化合物 25 (0.38g,19.1%),mp:100.3℃。
其光學數據如下:IR (KBr disc) cm-1: 1701.22 (C4=O), 1674.21 (C3-CO-OEt); UVλmax nm (MeOH) (㏒ε): 294.5 (4.076); 1H-NMR(200MHz, DMSO-d6) δ: 0.99 (3H, t, 2”), 3.66 (3H, s, 3’-OCH3), 3.68 (2H, q, H-1”), 3.70 (3H, s, 10-OCH3), 4.58 (2H, s, H-5), 5.02 (2H, s, H-7), 6.65~6.79 (6H, m, H-2’, H-4’, H-6’, H-9, , H-11, H-13), 7.15~7.23 (2H, td, H-5’, H-12); 13C-NMR (200MHz,CDCl3 ) δ: 13.74 (C-2”), 54.93 (10-OCH3), 55.15 (3’-OCH3), 55.75 (C-7), 60.78 (C-1”), 74.08 (C-5), 91.60 (C-3), 110.58 (C-2’), 112.91 (C-11), 113.03 (C-4’, C-9), 116.97 (C-6’), 119.42 (C-13), 129.60 (C-12), 129.97 (C-5’), 136.80 (C-8), 143.12 (C-1’), 159.60 (C-10), 160.10 (C-3’), 161.76 (C-2), 176.52 (C-3”), 191.76 (C-4)。
Ethyl 2-[N-p-methoxy-(3’-methoxy)]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (26)之合成
N O
取化合物 1 (1.386g,0.005 mole)和 p - methoxybenzyl chloride (1.096g,0.007mole)為原料,比 照化合物 11 的合成法及處理步驟,得白色產物,為化合物 26 (0.78g,39.3%),mp:98℃。 111.05 (C-2’), 113.17 (C-4’), 113.84 (C-10, C-12), 117.49 (C-6’), 127.04 (C-8), 129.11 (C-9, C-13), 129.96 (C-5’), 142.73 (C-1’), 159.13 (C-11), 160.10 (C-3’), 161.89 (C-2), 176.33 (C-3”), 191.75 (C-4)。
( 三 ) Ethyl 2-[N-various benzyl]anilino-4-oxo-4,5-dihydrofuran-3- carboxylate ( 27~42) 之合成
Ethyl 2-[N-benzyl]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (27)之合成
N O KI(0.83g, 0.005mole)攪拌之,接著加入及 benzyl chloride(0.89 g,0.007 mole),反應 1~2 小時,以 TLC 檢查反應之進度。然後方法 1:然後加冰水 100ml,靜置讓其沉澱析出,用布氏漏斗減壓 抽氣過濾沉澱物,以清水洗 1~2 遍,以冰冷乙醇稍微浸泡沉澱物幾秒鐘溶解掉沉澱物表面之 可溶性雜質,減壓抽氣移除乙醇,剩餘沉澱物再用乙醇做再結晶,得淡黃色結晶產物,為化 合物 27 (0.61gm,36.2%),mp:117℃。註:反應完成後,加冰水 100ml 靜置,如沒有沉澱物 出現或沉澱物很少,則再以CHCl3萃取多次,取CHCl3層,以無水MgSO4乾燥脫水,減壓濃 縮除去 CHCl3,濃縮液靜置讓其長結晶,收集結晶物後,再以 EtOH 做再結晶。如靜置一段 時間仍無結長出,以矽膠管柱層析(CHCl3/EtOH)沖提之分離所須之化合物。其光學數據如下:
IR (KBr disc) cm-1: 1732.08 (C4=O), 1658.78 (C3-CO-OEt).
UVλmax nm(MeOH)(㏒ε):293.5(4.160). 1H-NMR(200MHz, CDCl3)δ: 0.955 (3H, t,
J=7.1Hz,
H-2”), 3.657 (2H, q, H-1”), 4.606 (2H, s, H-5), 5.065 (2H, s, H-7), 7.102~7.303 (10H, m, H-2’, H-3’, H-4’, H-5’, H-6’, H-9, H-10, H-11, H-12, H-13); 13C-NMR (200MHz,CDCl3) δ: 14.10 (C-2”), 56.13 (C-7), 60.29 (C-1”), 74.35 (C-5), 91.58 (C-3), 125.47 (C-2’,C-6’), 127.64 (C-4’), 127.72 (C-9, C-13), 128.08 (C-11), 128.81 (C-10, C-12), 129.52 (C-3’, C-5’), 135.40 (C-8), 142.22 (C-1’),N O
取化合物 2 (1.23g,0.005 mole)和
o
-methylbenzyl chloride ( 0.984g,0.007 mole)為原料,比照化 合物 27 的合成法及處理步驟,得白色產物,為化合物 28 (0.83g,47.2%),mp:155℃。其光 學數據如下: IR (KBr disc) cm-1:1728.22 (C4=O), 1654.92 (C3-CO-OEt); UVλmax nm (MeOH) (㏒ε): 293 (4.100); 1H-NMR(200MHz, CDCl3) δ: 0.991 (3H, t, J=7.1Hz, H-2”), 2.210 (3H, s, 9-CH3), 3.695 (2H, q, H-1”), 4.601 (2H, s, H-5), 5.104 (2H, s, H-7), 7.159~7.350 (9H, m, H-2’, H-3’, H-4’, H-5’, H-6’, H-10, H-11, H-12, H-13); 13C-NMR (200MHz,CDCl3) δ: 13.84 (C-2”), 18.75 (9-CH3), 53.71 (C-7), 60.05 (C-1”), 74.15 (C-5), 91.55 (C-3), 124.68 (C-2’ , C-6’), 126.33 (C-12’), 127.29 (C-11), 127.57 (C-4’), 129.21 (C-13), 130.31 (C-3’, C-5’), 130.78 (C-10), 133.43 (C-9), 135.09 (C-8), 142.38 (C-1’), 161.77 (C-2), 176.85 (C3”), 191.87 (C-4)。Ethyl 2-[N-m-methylbenzyl]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (29)之合成
N O
取化合物 2 (1.23g,0.005 mole) 和
m
-methylbenzyl chloride ( 0.984g,0.007 mole)為原料,比照 化合物 27 的合成法及處理步驟,得淡黃透明產物,為化合物 29 (0.56g,31.9%),mp:107℃。其光學數據如下:IR (KBr disc) cm-1:1708.93 (C4=O), 1678.07 (C3-CO-OEt); UVλmax nm (MeOH) (㏒ε): 293 (3.931); 1H-NMR(200MHz, CDCl3) δ: 0.96 (3H, t, J=7.1Hz, H-2”), 2.28 (3H, s, 10-CH3), 3.66 (2H, q, H-1”), 4.61 (2H, s, H-5), 5.04 (2H, s, H-7), 6.93~7.34 (9H, m, H-2’, H-3’,
H-4’, H-5’, H-6’, H-9, H-11, H-12, H-13); 13C-NMR (200MHz,CDCl3) δ: 13.81 (C-2”), 21.15 (10-CH3), 55.77 (C-7), 59.99 (C-1”), 74.09 (C-5), 91.31 (C-3), 124.32 (C-13), 125.07 (C-2’, C-6’), 127.30 (C-4’), 127.95 (C-11), 128.41 (C-9), 128.50 (C-12), 129.21 (C-3’, C-5’), 135.09 (C-10), 138.26 (C-8), 142.05 (C-1’), 161.72 (C-2), 176.68 (C3”), 191.80 (C-4)。
Ethyl 2-[N-p-methylbenzyl]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (30)之合成
N O
取化合物 2 (1.23g,0.005 mole)和
p
-methylbenzyl chloride ( 0.984g,0.007 mole)為原料,比照化 合物 27 的合成法及處理步驟,得白色產物,為化合物 30 (0.67g,38.1%),mp:127℃。其光 學數據如下:IR (KBr disc) cm-1:1735.93 (C4=O), 1658.78 (C3-CO-OEt); UVλmax nm (MeOH) (㏒ε): 292 (3.908); 1H-NMR(400MHz, CDCl3) δ: 0.987 (3H, t, J=7.1Hz, H-2”), 2.317 (3H, s, 11-CH3), 3.686 (2H, q, H-1”), 4.655 (2H, s, H-5), 5.054 (2H, s, H-7), 7.047~7.354 (9H, m, H-2’, H-3’, H-4’, H-5’, H-6’, H-9, H-10, H-12, H-13)。3C-NMR (200MHz,CDCl3) δ: 14.12 (C-2”), 21.17 (11-CH3), 55.92 (C-7), 60.33 (C-1”), 74.38 (C-5), 91.50 (C-3), 125.48 (C-2’, C-6’), 127.65 (C-4’), 127.76 (C-9, C-13), 129.47 (C-10, C-12), 129.54 (C-3’, C-5’), 132.23 (C-11), 137.90 (C-8), 142.15 (C-1’), 162.007 (C-2), 176.88 (C3”), 192.080 (C-4)。
Ethyl 2-[N-o-chlorobenzyl]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (31)之合成
N O
取化合物 2 (1.23g,0.005 mole)和
o
-chlorobenzyl chloride (1.127g,0.007mole)為原料,比照化 合物 27 的合成法及處理步驟,得白色產物,為化合物 31 (0.67g,36%),mp:142℃。其光學 數據如下: IR (KBr disc) cm-1: 1730.15 (C4=O), 1658.78 (C3-CO-OEt); UVλmax nm (MeOH) (㏒ε): 292 (3.847); 1H-NMR(200MHz, CDCl3) δ: 0.976 (3H, t, J=7.1Hz, H-2”), 3.693 (2H, q, H-1”), 4.584 (2H, s, H-5), 5.198 (2H, s, H-7), 7.148~7.364 (9H, m, H-2’, H-3’, H-4’, H-5’, H-6’, H-10, H-11, H-12, H-13); 13C-NMR (200MHz,CDCl3) δ: 13.80 (C-2”), 53.42 (C-7), 60.10 (C-1”), 74.21 (C-5), 91.69 (C-3), 124.45 (C-2’,C6’), 127.07 (C-4’), 127.31 (C-12), 127.81 (C-11), 128.89 (C-13), 129.25 (C-3’, C5’), 129.52 (C-10), 132.48 (C-9), 133.07 (C-8), 142.04 (C-1’), 161.65 (C-2), 177.03 (C-3”), 191.88(C-4)。Ethyl 2-[N-m-chlorobenzyl]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (32)之合成
N O
取化合物 2 (1.23g,0.005 mole)和
m
-chlorobenzyl chloride (1.127g,0.007mole)為原料,比照化 合物 27 的合成法及處理步驟,得淡黃色產物,為化合物 32 (0.58g,31.2%),mp:110℃。其 光學數據如下:IR (KBr disc) cm-1: 1701.22 (C4=O), 1676.14 (C3-CO-OEt); UVλmax nm (MeOH)(㏒ε): 293 (3.830); 1H-NMR(200MHz, CDCl3) δ: 0.993 (3H, t, J=7.1Hz, H-2”), 3.695 (2H, q, H-1”), 4.636 (2H, s, H-5), 5.0713 (2H, s, H-7), 7.131~7.351 (9H, m, H-2’, H-3’, H-4’, H-5’, H-6’, H-9, H-11, H-12, H-13); 13C-NMR (200MHz,CDCl3) δ: 13.84 (C-2”), 55.18 (C-7), 60.10 (C-1”), 74.16 (C-5), 91.48 (C-3), 125.04 (C-2’,C6’), 125.53 (C-13), 127.58 (C-4’, C-11), 128.07 (C-9), 129.41 (C-3’, C-5’), 129.87 (C-12), 134.45 (C-10), 137.20 (C-8), 141.74 (C-1’), 161.64 (C-2), 176.72 (C-3”), 191.75 (C-4)。
Ethyl 2-[N-p-chlorolbenzyl]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (33)之合成
N O
取化合物 2 (1.23g,0.005 mole)和
p
-chlorobenzyl chloride (1.127g,0.007mole)為原料,比照化 合物 27 的合成法及處理步驟,得淡黃鱗片狀產物,為化合物 33 (0.51g,27.4%),mp:120℃。其光學數據如下:IR (KBr disc) cm-1: 1732.08 (C4=O), 1658.78 (C3-CO-OEt); UVλmax nm (MeOH) (㏒ε): 292.5 (4.422); 1H-NMR(200MHz, CDCl3) δ: 0.997 (3H, t, J=7.1Hz, H-2”), 3.706 (2H, q, H-1”), 4.636 (2H, s, H-5), 5.062 (2H, s, H-7), 7.093~7.348 (9H, m, H-2’, H-3’, H-4’, H-5’, H-6’, H-9, H-10, H-12, H-13); 13C-NMR (200MHz,CDCl3) δ: 13.85 (C-2”), 55.15 (C-7), 60.11 (C-1”), 74.12 (C-5), 91.35 (C-3), 125.21 (C-2’,C-6’), 127.55 (C-4’), 128.74 (C-9, C-13), 129.01 (C-10, C-12), 129.38 (C-3’, C-5’), 133.57 (C-11), 133.80 (C-8), 141.62 (C-1’), 161.69 (C-2), 176.67 (C-3”), 191.67 (C-4)。
N O
取化合物 2 (1.23g,0.005 mole)和
o
-fluorobenzyl chloride (1.012g,0.007mole)為原料,比照化 合物 27 的合成法及處理步驟,得白色產物,為化合物 34 (0.58g,32.6%),mp:128℃。其光 學數據如下:IR (KBr disc) cm-1: 1730.15 (C4=O), 1654.92 (C3-CO-OEt); UVλmax nm (MeOH) (㏒ε): 292 (3.889); 1H-NMR(200MHz, CDCl3) δ: 0.959 (3H, t, J=7.1Hz, H-2”), 3.66 (2H, q, H-1”), 4.598 (2H, s, H-5), 5.139 (2H, s, H-7), 6.958~7.293 (9H, m, H-2’, H-3’, H-4’, H-5’, H-6’, H-10, H-11, H-12, H-13); 13C-NMR (200MHz,CDCl3) δ: 13.80 (C-2”), 49.38 (C-7), 60.05 (C-1”), 74.12 (C-5), 91.45 (C-3), 115.11 & 115.53 (C-10), 122.18 & 112.46 (C-12), 124.17 &1 12.24 (C-11), 125.03 (C-2’, C-6’), 127.45 (C-4’), 129.21 (C-3’, C-5’, C-13),129.57 & 129.73 (C-8), 141.61 (C-1’), 157.68 &162.5 (C-9)161.61 (C-2), 176.79 (C-3), 191.77 (C-4) 。
Ethyl 2-[N-m-fluorobenzyl]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (35)之合成
N O
取化合物 2 (1.23g,0.005 mole)和
m
- fluorobenzyl chloride (1.012g,0.007mole)為原料,比照化 合物 27 的合成法及處理步驟,得淡黃色產物,為化合物 35 (0.31g,17.4%),mp:133℃。其 光學數據如下:IR (KBr disc) cm-1: 1708.14 (C4=O), 1676.14 (C3-CO-OEt); UVλmax nm (MeOH) (㏒ε): 293 (4.001); 1H-NMR(400MHz, CDCl3) δ: 0.97 (3H, t, H-2”), 3.68 (2H, q, H-1”), 4.61 (2H,s, H-5), 5.06 (2H, s, H-7), 6.86~7.36 (9H, m, H-2’, H-3’, H-4’, H-5’, H-6’, H-9, H-11, H-12, H-13);
13C-NMR (200MHz,CDCl3) δ: 13.80 (C-2”), 55.23 (C-7), 60.08 (C-1”), 74.11 (C-5), 91.43 (C-3), 114.23 &114.66 (C-10), 115.03 (C-9), 123.02 (C-13), 125.00 (C-2’, C-6’), 127.48 (C-4’), 129.36 (C-3’, C-5’), 130.06 & 130.23 (C-12), 137.58 & 137.72 (C-8), 141.77 (C-1’), 160.17 (C-10), 161.61 (C-2), 176.72 (C-3”), 191.68 (C-4)。
Ethyl 2-[N-p-fluorobenzyl]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (36)之合成
N O
取化合物 2 (1.23g,0.005 mole)和
p
- fluorobenzyl chloride (1.012g,0.007mole)為原料,比照化 合物 27 的合成法及處理步驟,得淡黃色產物,為化合物 36 (0.47g,26.5%),mp:107℃。其 光學數據如下:MS (m/z ,% ): 354.9 (M+, 2.5), 355.9 (M++1, 0.93),; IR (KBr disc) cm-1: 1720.50 (C4=O), 1651.07 (C3-CO-OEt); UVλmax nm (MeOH) (㏒ε): 293 (4.009); 1H-NMR(400MHz, CDCl3) δ: 0.96 (3H, t, H-2”), 3.665 (2H, q, H-1”), 4.61 (2H, s, H-5), 5.02 (2H, s, H-7), 6.89~7.34 (9H, m, H-2’, H-3’, H-4’, H-5’, H-6’, H-9, H-10, H-12, H-13); 13C-NMR (200MHz,CDCl3) δ:13.81 (C-2”), 55.06 (C-7), 60.04 (C-1”), 74.05 (C-5), 91.25 (C-3), 115.23 & 115.66 (C-10, C-12), 125.32 (C-2’, C-6’), 127.51 (C-4’), 129.31 (C-3’, C-5’), 129.43 & 129.60 (C-9, C-13), 130.80 (C-8), 141.51 (C-1’), 161.68 (C-2), 164.80 (C-11), 176.58 (C-3”), 191.62 (C-4)。
N O
取化合物 2 (1.23g,0.005 mole)和
o
- nitrobenzyl chloride (1.20g,0.007mole)為原料,比照化合 物 27 的合成法及處理步驟,得白色產物,為化合物 37 (0.61g,31.9%),mp:145℃。其光學 數據如下:IR (KBr disc) cm-1: 1726.29 (C4=O), 1681.93 (C3-CO-OEt); UVλmax nm (MeOH) (㏒ε): 294.5 (3.929); 1H-NMR(200MHz, CDCl3) δ: 0.963 (3H, t, H-2”), 3.682 (2H, q, H-1”), 4.54 (2H, s, H-5), 5.52 (2H, s, H-7), 7.167 ~7.368 (5H, m, H-2’, H-3’, H-4’, H-5’, H-6’), 7.43~7.514 (1H,
m, H-12), 7.606~7.664 (2H, m, H-11, H-13), 8.07~8.11 (1H, d, H-10);
13C-NMR (200MHz,CDCl3) δ: 13.80 (C-2”), 53.49 (C-7), 60.15 (C-1”), 74.26 (C-5), 92.01 (C-3), 123.84 (C-2’, C-6’), 125.33 (C-10), 127.32 (C-4’), 127.86 (C-11), 128.57 (C-13), 129.48 (C-3’, C-5’,), 131.87 (C-12), 134.04 (C-8), 142.49 (C-1), 147.32 (C-9), 161.42 (C-2), 177.23 (C-3”), 191.80 (C-4)。Ethyl 2-[N-m-nitrobenzyl]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (38)之合成
N O
取化合物 2 (1.23g,0.005 mole)和
m -
nitrobenzyl chloride (1.20g,0.007mole)為原料,比照化合 物 27 的合成法及處理步驟,得黃色產物,為化合物 38 (0.45g,23.5%),mp:130℃。其光學 數據如下:IR (KBr disc) cm-1: 1708.14 (C4=O), 1681.93 (C3-CO-OEt); UVλmax nm (MeOH) (㏒ε): 293 (4.085); 1H-NMR(400MHz, CDCl3) δ: 0.96 (3H, t, H-2”), 3.66 (2H, q, H-1”), 4.61 (2H, s, H-5), 5.18 (2H, s, H-7), 7.12~7.55 (7H, m, H-2’, H-3’, H-4’, H-5’, H-6’, H-10, H-12, H-13), 8.03 (1H, s, H-9), 8.08~8.13 (1H, dd, H-11)。13C-NMR (200MHz,CDCl3) δ: 13.80 (C-2”), 54.91 (C-7), 60.15 (C-1”), 74.19 (C-5), 91.56 (C-3), 122.57 (C-11), 122.90 (C-9), 125.06 (C-2’, C-6’), 127.73 (C-4’), 129.56 (C-3’, C-5’), 129.65 (C-12,), 133.48 (C-13), 137.2 (C-8), 141.34 (C-1’), 148.14 (C-10), 161.56 (C-2), 176.80 (C-3”), 191.64 (C-4)。
Ethyl 2-[N-p-nitrolbenzyl]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (39)之合成
N O
取化合物 2 (1.23g,0.005 mole)和
p
- nitrobenzyl chloride (1.20g,0.007mole)為原料,比照化合 物 27 的合成法及處理步驟,得白色產物,為化合物 39 (0.62g,32.4%),mp:172℃。其光學 數據如下:IR (KBr disc) cm-1: 1678.07 (C4=O), 1606.70 (C3-CO-OEt); UVλmax nm (MeOH) (㏒ε): 293.5 (4.084); 1H-NMR(400MHz, CDCl3) δ: 0.98 (3H, t, H-2”), 3.715 (2H, q, H-1”), 4.612 (2H, s, H-5), 5.19 (2H, s, H-7), 7.113 ~ 7.394 (7H, m, H-2’, H-3’, H-4’, H-5’, H-6’, H-9, H-11, H-13), 8.116~8.172 (2H, dd, H-10, H-12); 13C-NMR (200MHz,CDCl3) δ: 13.83 (C-2”), 55.05 (C-7), 60.20 (C-1”), 74.18 (C-5), 91.59 (C-3), 123.80 (C-2’, C-6’), 124.89 (C-10, C-12), 127.71 (C-4’), 128.23 (C-9, C-13), 129.54 (C-3’, C-5’), 141.59 (C-1’), 142.43 (C-11), 147.43 (C-8), , 161.56 (C-2), 176.84 (C-3”), 191.58 (C-4)。
N O
取化合物 2 (1.23g,0.005 mole)和
o
-methoxybenzyl chloride (1.096g,0.007mole)為原料,比照 化合物 27 的合成法及處理步驟,得淡黃色產物,為化合物 40 (0.77g,41.9%),mp:149℃。其光學數據如下:IR (KBr disc) cm-1: 1726.29 (C4=O), 1660.71 (C3-CO-OEt); UVλmax nm (MeOH) (㏒ε): 292 (4.020); 1H-NMR(400MHz, CDCl3) δ: 0.96 (3H, t, H-2”), 3.66 (2H, q, H-1”), 3.68 (3H, s, 9-OCH3), 4.56 (2H, s, H-5), 5.09 (2H, s, H-7), 6.77 ~ 6.92 (2H, m, H-2’, H-6’), 7.12 ~ 7.30 (7H, m, H-3’, H-4’, H-5’, H-10, H-11, H-12, H-13); 13C-NMR (200MHz,CDCl3) δ: 13.81 (C-2”), 51.20 (9-OCH3), 54.93 (C-7), 59.96 (C-1”), 74.06 (C-5), 91.35 (C-3), 110.00 (C-10), 120.39 (C-12), 123.48 (C-11), 124.79 (C-2’, C-6’), 127.05 (C-4’),127.87 (C-13), 128.94 (C-3’, C-5’, C-8), 142.27 (C-1’), 156.57 (C-9), 161.82 (C-2), 176.90 (C-3”), 191.85 (C-4)。
Ethyl 2-[N-m-methoxybenzyl]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (41)之合成
N O
取化合物 2 (1.23g,0.005 mole)和
m
-methoxybenzyl chloride (1.096g,0.007mole)為原料,比照 化合物 27 的合成法及處理步驟,得淡黃透明產物,為化合物 41 (0.72g,39.2%),mp:106.5℃。其光學數據如下:IR (KBr disc) cm-1: 1726.29 (C4=O), 1662.64 (C3-CO-OEt); UVλmax nm
(MeOH) (㏒ε): 293 (3.904); 1H-NMR(400MHz, DMSO-d6) δ: 0.85 (3H, t, H-2”), 3.36 (3H, s, 10-OCH3), 3.37 (2H, q, H-1”), 4.71 (2H, s, H-5), 5.12 (2H, s, H-7), 6.79 ~ 6.85 (3H, m, H-2’, H-4’, H-6’), 7.17 ~ 7.34 (6H, m, H-3’, H-5’, H-9, H-11, H-12, H-13); 13C-NMR (200MHz,DMSO-d6) δ:
19.03 (C-2”), 59.56 (10-OCH3), 60.15 (C-7), 64.34 (C-1”), 79.64 (C-5), 95.88 (C-3), 118.07 (C-11), 118.20 (C-9), 124.70 (C-13), 130.24 (C-2’, C-6’), 132.16 (C-4’), 134.46 (C-3’, C-5’), 134.87 (C-12), 142.76 (C-8), 147.14 (C-1’), 164.53 (C-10), 166.54 (C-2), 181.66 (C-3”), 196.74 (C-4)。
Ethyl 2-[N-p-methoxylbenzyl]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (42)之合成
N O
取化合物 2 (1.23g,0.005 mole)和
p
- methoxybenzyl chloride (1.096g,0.007mole)為原料,比照 化合物 27 的合成法及處理步驟,得白透明產物,為化合物 42 (0.74g,40.3%),mp:127℃。其光學數據如下:IR (KBr disc) cm-1: 1728.22 (C4=O), 1654.92 (C3-CO-OEt); UVλmax nm (MeOH) (㏒ε): 292.5 (3.945); 1H-NMR(200MHz, CDCl3) δ: 0.986 (3H, t, J=7.1Hz, H-2”), 3.655 (2H, q, H-1”), 3.74 (3H, s, 11-OCH3), 4.62 (2H, s, H-5), 4.99 (2H, s, H-7), 6.75~6.79 (2H, d, H-2’, H-6’), 7.02~7.06 (2H, d, H-10, H-12), 7.08~7.11 (2H, d, H-9, H-13), 7.21~7.3 (3H, m, H-3’, H-4’, H-5’); 13C-NMR (200MHz,CDCl3) δ: 13.83 (C-2”), 54.98 (C-7), 55.36 (11-OCH3), 59.99 (C-1”), 79.04 (C-5), 91.13 (C-3), 113.80 (C-10, C-12), 125.47 (C-2’, C-6’), 126.94 (C-8), 127.39 (C-4’), 129.14 (C-9, C-13), 129.21 (C-3’, C-5’), 141.64 (C-1’), 159.10 (C-11), 161.75 (C-2), 176.49 (C-3”), 191.65 (C-4)。
Ethyl 2-[N-various benzyl-(3’-chloro)]anilino-4-oxo-4,5-dihydrofuran-3- carboxylate ( 43~59) 之合成
Ethyl 2-[N-benzyl-(3’-chloro)]anilino-4-oxo-4,5-dihydrofuran-3-carboxylate (43)之合成
N O 加熱(約 50~60℃)使之溶解,接著加入 KI (0.83g,0.005 mole)及 benzyl chloride (0.89g,0.007 mole),反應 0.5~3 小時,以 TLC 檢查反應之進度,然後加冰水,以 CHCl3萃取,取 CHCl3
層,以無水MgSO4乾燥脫水,減壓濃縮,濃縮液靜置生成結晶,結晶物以EtOH 做再結晶,
或無結晶或沉澱物出現時,以矽膠管柱層析(CHCl3/EtOH)沖提,得白色針狀產物,為化合物
43 (0.65g,35%), mp:134.4℃。其光學數據如下:MS (m/z ,%): 371(M
+ , 3.24), 373 (M++1, 1.16);IR (KBr disc ) cm-1: 1711.12 (C4=O), 1679.5 (C3-CO-OEt); UVλmax nm (MeOH) (㏒ε):293.5 (4.160); 1H-NMR(200MHz,DMSO-d6)δ: 0.896 (3H, t, H-2”), 3.506 (2H, q, H-1”), 4.728 (2H, s, H-5), 5.171 (2H, s, H-7), 7.22 ~7.46 (9H, m, H-9, H-10, H-11, H12, H-13, H-2’, H-4’, H-5’, H-6’ );
13C-NMR (200MHz,CDCl3) δ: 13.81.(C-2”), 55.73 (C-7), .60.22 (C-1”), 74.15 (C-5), 91.54 (C-3), 123.32 (C6’), 125.33 (C-2’), 127.29 (C-9, C-13), 127.46 (C-4’), 127.96 (C-11’), 128.65 (C-10, C-12), 130.22 (C-5’), 134.75 (C-3’, C-8), 143.07 (C-1’), 161.51 (C-2), 176.85 (C-3”), 191.70 (C-4)。