專利名稱:巖白菜素類衍生物及其制備方法
技術(shù)領(lǐng)域:
本發(fā)明涉及新穎的含巖白菜素結(jié)構(gòu)的化合物,其制備方法,以該類化合物為活性成分的組合物在藥物方面的應(yīng)用。
背景技術(shù):
巖白菜素廣泛存在于多種植物中,由于其廣泛的生物活性,受到植物化學(xué)、藥物化學(xué)及藥理學(xué)家的關(guān)注。巖白菜素除臨床上主要用于止咳外,還具有抗炎、抗真菌、抗病毒、保肝抗艾滋病毒等活性,甚至還對關(guān)節(jié)炎及潰瘍有作用。因此,對巖白菜素進(jìn)行深入研究,特別是對其進(jìn)行結(jié)構(gòu)修飾改造,研究其類似物、衍生物的生理活性,對于新藥的研發(fā),有重大意義。
本發(fā)明中以巖白菜素為原料合成的巖白菜素類化合物、衍生物及其制備方法至今為止文獻(xiàn)未見報道。
發(fā)明內(nèi)容
本發(fā)明提供一系列巖白菜素類衍生物及其制備方法,以巖白菜素、芐基鹵化物等主要原料,首先制備酚羥基保護(hù)的巖白菜素化合物,在此基礎(chǔ)上將其醇羥基進(jìn)行修飾改造,合成了一系列巖白菜素類衍生物。
本發(fā)明提供的巖白菜素類衍生物用以下結(jié)構(gòu)通式(I)表示
(1)當(dāng)R=Bn,Me,Et時,R′=OH (2)當(dāng)R=Bn時,R′=OTs,OMs,OTBS,I,Br,Cl,NHBn,NHCH2Ph(OCH3)-4,NHCH2Ph(I)-4,NHCH2Ph(Br)-4,NHCH2Ph(Cl)-4,
一種具有結(jié)構(gòu)通式(I)的巖白菜素類衍生物的制備反應(yīng)式如下
上述制備方法步驟如下 (1)、巖白菜素酚羥基的保護(hù) 以巖白菜素、鹵化芐或鹵代甲烷/乙烷及碳酸鉀為原料,原料的摩爾數(shù)比例為1/2~5/6~10,加入N,N-二甲基甲酰胺,使原料完全溶解后,室溫至60℃攪拌反應(yīng)24~72小時。減壓蒸干N,N-二甲基甲酰胺后加入乙酸乙酯和水(比例為3/1),分出有機(jī)層后,水層用乙酸乙酯萃取3~5次,合并有機(jī)相,用飽和食鹽水洗至中性,經(jīng)無水硫酸鈉干燥后過濾,減壓蒸干溶劑得白色粉末狀固體產(chǎn)物(收率95~100%)。
(2)、巖白菜素醇羥基的反應(yīng) 以步驟(1)產(chǎn)物、相應(yīng)氯化物及堿(吡啶、叔胺或碳酸鉀)為原料,原料的摩爾數(shù)比例為1/2~3/5~8,加入二氯甲烷使原料完全溶解后,于0℃至室溫攪拌反應(yīng)24~72小時。減壓蒸干吡啶或叔胺后加入二氯甲烷和水(體積比為3/1),分出有機(jī)層后,水層用二氯甲烷萃取3~5次,合并有機(jī)相,用飽和食鹽水洗至中性,經(jīng)無水硫酸鈉干燥后過濾,減壓蒸干溶劑得粗品。硅膠柱層析(石油醚/乙酸乙酯=3∶1~1∶1)得白色固體粉末狀固體產(chǎn)物(收率75~95%)。
(3)、巖白菜素鹵化物的制備 以步驟(2)生成的甲磺酸酯或?qū)妆交撬狨ゼ胞u化鈉/鹵化鉀為原料,原料的摩爾數(shù)比例為1/1~3,以丙酮為溶劑回流反應(yīng)3~5天。減壓蒸干丙酮后二氯甲烷溶解,過濾除去固體,蒸干二氯甲烷得粗品。硅膠柱層析(石油醚/乙酸乙酯=3∶1~1∶1)得白色固體粉末(收率80~90%)。
(4)、巖白菜素衍生物的制備 以步驟(2)生成的甲磺酸酯/對甲苯磺酸酯或步驟(3)生成的鹵化物及含氮化合物R’H為原料,原料的摩爾數(shù)比例為1/1~5,以N,N-二甲基甲酰胺為溶劑90℃~回流反應(yīng)20~60小時。減壓蒸干N,N-二甲基甲酰胺后加入二氯甲烷和水(體積比為3/1),分出有機(jī)層后,水層用二氯甲烷萃取3~5次,合并有機(jī)相,用飽和食鹽水洗至中性,經(jīng)無水硫酸鈉干燥后過濾,減壓蒸干溶劑得粗品。硅膠柱層析(乙酸乙酯/乙醇=20∶1~3∶1)得白色固體粉末狀產(chǎn)物(收率70~98%)。
(5)、巖白菜素衍生物脫芐基反應(yīng) 將步驟(4)、生成的含芐基產(chǎn)物溶于甲醇(5~20mg/mL),加入鈀碳催化劑(用量為原料質(zhì)量的5~20%),氫氣氛下20~50℃反應(yīng)20~60小時。過濾除去催化劑,減壓蒸干甲醇得粗品。硅膠柱層析(乙酸乙酯/甲醇=15∶1~3∶1)得白色固體粉末狀產(chǎn)物(收率50~98%)。
本發(fā)明提供了一種常見藥物巖白菜素的結(jié)構(gòu)修飾改造方法,合成了一系列結(jié)構(gòu)新穎的巖白菜素類衍生物,該類化合物的合成方法尚未見報道。該合成方法從易得的天然產(chǎn)物出發(fā),合成方法簡便,具有較好的可操作性和反應(yīng)收率。本發(fā)明為探討巖白菜素新的用途提供了科學(xué)依據(jù),對新藥的研發(fā)具有重要意義。
具體實施例方式以下結(jié)合實例列舉本發(fā)明的典型化合物。
實施例1 芐基巖白菜素
制備過程如步驟(1),收率99%。
1H NMR(300MHz,CDCl3)δ7.87(1H,s),7.82(2H,d,J=7.5Hz),7.61(2H,d,J=7.5Hz),7.45-7.32(6H,m),5.44-5.32(2H,q,J=11.1Hz),5.19(2H,s),5.04(1H,d,J=9.9Hz),4.59-4.41(5H,m),4.05-4.03(1H,m),3.96(3H,s). 13C-NMR(75MHz,CDCl3)δ164.22,152.69,150.85,148.95,138.53,136.79,128.69,128.35,128.18,127.80,127.64,120.01,111.52,82.58,81.37,75.73,75.43,72.43,71.15,70.78,61.84,60.86.。
實施例2 甲基巖白菜素
制備過程如步驟(1),收率97%。
1H NMR(300MHz,CDCl3)δ7.88(1H,s),5.05(1H,d,J=9.9Hz),4.61-4.43(5H,m),4.06-4.04(1H,m),3.98(3H,s),3.88(6H,s). 13C-NMR(75MHz,CDCl3)δ163.56,151.50,149.23,148.65,127.84,119.45,110.64,80.34,76.56,74.29,73.43,71.74,62.54,61.11,56.26. 實施例3 乙基巖白菜素
制備過程如步驟(1),收率96%。
1H NMR(300MHz,CDCl3)δ7.86(1H,s),5.03(1H,d,J=9.8Hz),4.58-4.41(5H,m),4.09-4.07(1H,m),4.03(2H,q,J=19.7Hz),4.01(2H,q,J=19.3Hz),3.98(3H,s),3.88(6H,s).1.26(3H,t,J=19.7Hz),1.23(3H,t,J=19.3Hz). 13C-NMR(75MHz,CDCl3)δ163.98,151.65,149.44,148.75,127.33,119.21,110.45,80.88,76.43,74.11,73.89,71.33,65.28,65.05,60.11.15.07,13.19。
實施例4 芐基巖白菜素對甲苯磺酸酯衍生物
制備過程如步驟(1)、(2),收率93%。
1H-NMR(300MHz,CDCl3),δ7.72(2H,d,J=8.4Hz),7.53(1H,s),7.44-7.20(12H,m),5.17-5.08(2H,q,J=15.6Hz),5.03-4.92(2H,q,J=21.9Hz),4.55(1H,d,J=9.6Hz),4.35-4.30(1H,dd,J1=11.4Hz,J2=11.1Hz),4.11-3.91(3H,m),3.89(3H,s),3.74-3.68(1H,m),3.61(1H,d,J=8.4Hz),2.35(3H,s). 13C-NMR(75MHz,CDCl3),δ164.04,152.87,150.35,149.46,144.89,137.71,136.00,132.76,129.85,128.66,128.32,127.93,127.79,127.55,126.39,118.67,111.73,79.48,77.82,75.87,74.44,72.19,71.09,69.40,68.29,61.17,21.59. 實施例5 芐基巖白菜素甲磺酸酯衍生物
制備過程如步驟(1)、(2),收率93%。
1H-NMR(300MHz,CDCl3)δ7.74(2H,d,J=7.8Hz),7.61(2H,d,J=7.8Hz),7.55(1H,s),7.43-7.29(6H,m),5.41-5.33(2H,q,J=15.1Hz),5.17(2H,s),5.03(1H,d,J=9.9Hz),4.57-4.40(5H,m),4.04-4.02(1H,m),3.96(3H,s),2.95(3H,s). 13C-NMR(75MHz,CDCl3)δ164.43,151.59,150.75,148.91,138.34,135.66,129.25,128.23,128.08,127.32,127.33,119.87,111.23,82.33,81.31,75.18,75.55,72.41,70.12,70.11,62.86,61.85,37.95. 實施例6 芐基巖白菜素叔丁基二甲基硅醚衍生物
制備過程如步驟(1)、(2),收率85%。
1H-NMR(300MHz,CDCl3)δ7.78(2H,d,J=7.8Hz),7.63(2H,d,J=7.8Hz),7.52(1H,s),7.38-7.27(6H,m),5.40-5.31(2H,q,J=15.1Hz),5.16(2H,s),5.01(1H,d,J=9.9Hz),4.55-4.39(5H,m),4.03-4.01(1H,m),3.95(3H,s),1.12(9H,s),0.08(6H,s),. 13C-NMR(75MHz,CDCl3)δ165.21,152.33,150.22,148.54,139.14,134.56,129.11,128.09,127.95,127.13,127.00,119.77,111.75,82.35,81.68,75.38,75.64,72.33,70.11,70.07,62.85,61.74,25.88,18.12,-5.72. 實施例7 芐基巖白菜素碘代衍生物
制備過程如步驟(1)~(3),收率87%。
1H-NMR(300MHz,CDCl3)δ7.48-7.26(11H,m),5.11-5.04(4H,m),4.68(1H,d,J=10.2Hz),4.04-3.81(5H,m),3.49-3.38(2H,m),3.16(1H,d,J=10.8Hz),2.94(1H,d,J=9.0Hz). 13C-NMR(75MHz,CDCl3)δ164.69,152.80,150.31,149.69,138.01,135.91,128.63,128.27,127.69,127.50,127.10,126.78,118.63,111.73,80.07,77.15,75.56,74.00,73.75,71.69,71.06,61.20,8.07. 實施例8 芐基巖白菜素溴代衍生物
制備過程如步驟(1)~(3),收率80%。
1H-NMR(300MHz,CDCl3)δ7.48-7.26(11H,m),5.11-5.04(4H,m),4.78(1H,d,J=10.1Hz),4.05-3.85(5H,m),3.50-3.44(2H,m),3.56(1H,d,J=10.5Hz),3.31(1H,d,J=10.5Hz). 13C-NMR(75MHz,CDCl3)δ165.12,152.96,150.65,149.89,138.64,135.99,128.87,128.50,127.86,127.53,127.89,126.94,118.37,111.43,80.75,77.89,76.32,74.56,73.84,71.79,71.35,61.55,32.55. 實施例9 芐基巖白菜素氯代衍生物
制備過程如步驟(1)~(3),收率72%。
1H-NMR(300MHz,CDCl3)δ7.49-7.26(11H,m),5.12-5.05(4H,m),4.79(1H,d,J=10.0Hz),4.05-3.87(5H,m),3.51-3.46(2H,m),3.64(1H,d,J=10.8Hz),3.39(1H,d,J=10.8Hz). 13C-NMR(75MHz,CDCl3)δ165.21,152.88,150.96,149.91,138.75,136.05,128.89,128.86,127.54,127.33,127.12,126.99,118.65,111.34,80.21,77.92,76.54,74.76,73.94,71.92,71.43,61.61,43.62. 實施例10 芐基巖白菜素芐胺衍生物
制備過程如步驟(1)~(4),收率84%。
1H-NMR(300MHz,CDCl3)δ7.52-7.19(16H,m),5.15-4.90(4H,m),4.53(1H,d,J=10.2Hz),4.08-3.91(7H,m),3.67-3.56(4H,m),2.92-2.81(2H,m). 13C-NMR(75MHz,CDCl3)δ164.09,152.78,150.25,149.24,139.20,137.62,136.10,128.73,128.57,128.51,128.25,128.05,127.75,127.62,127.26,126.81,119.03,111.78,80.11,78.10,75.72,74.45,74.06,72.36,71.10,61.32,53.77,51.03. 實施例11 芐基巖白菜素對甲氧基芐胺衍生物
制備過程如步驟(1)~(4),收率80%。
1H-NMR(300MHz,CDCl3)δ7.55-7.23(11H,m),6.96(2H,d,J=8.4Hz),6.64(2H,d,J=8.4Hz),5.14-4.91(4H,m),4.55(1H,d,J=10.2Hz),4.10-3.93(7H,m),3.86(3H,s),3.68-3.59(4H,m),2.94-2.83(2H,m). 13C-NMR(75MHz,CDCl3)δ164.12,154.56,152.56,150.35,149.87,139.12,137.57,136.87,129.15,128.77,128.52,128.14,127.58,127.29,126.53,119.21,114.51,111.77,80.15,78.32,75.77,74.96,74.14,72.49,71.13,61.33,55.95,53.75,51.08。
實施例12 芐基巖白菜素對溴芐胺衍生物
制備過程如步驟(1)~(4),收率80%。
1H-NMR(300MHz,CDCl3)δ7.56-7.21(13H,m),6.95(2H,d,J=8.4Hz),5.13-4.90(4H,m),4.53(1H,d,J=10.2Hz),4.08-3.90(7H,m),3.66-3.57(4H,m),2.92-2.81(2H,m). 13C-NMR(75MHz,CDCl3)δ164.09,152.89,150.31,149.87,139.12,137.57,136.87,131.52,130.44,128.65,128.48,128.08,127.55,127.32,126.78,121.41,119.25,111.45,80.19,78.46,75.72,74.91,74.55,72.71,71.16,61.35,53.73,51.04. 實施例13 芐基巖白菜素對氯芐胺衍生物
制備過程如步驟(1)~(4),收率77%。
1H-NMR(300MHz,CDCl3)δ7.52-7.17(13H,m),6.99(2H,d,J=8.4Hz),5.11-4.92(4H,m),4.52(1H,d,J=10.2Hz),4.07-3.89(7H,m),3.65-3.56(4H,m),2.90-2.80(2H,m). 13C-NMR(75MHz,CDCl3)δ164.07,152.77,150.30,149.57,139.23,137.78,136.44,132.86,129.58,128.77,128.54,128.06,127.35,127.21,126.68,121.42,119.55,111.38,80.20,78.57,75.18,74.82,74.73,72.78,71.42,61.67,53.72,51.07. 實施例14 芐基巖白菜素咪唑衍生物
制備過程如步驟(1)~(4),收率83%。
1H-NMR(300MHz,CDCl3)δ7.59(1H,s),7.51-6.95(13H,m),5.18-5.04(4H,m),4.24-4.15(2H,m),3.98-3.83(6H,m),3.54(1H,d,J=8.1Hz),3.04(1H,t,J=8.4Hz). 13C-NMR(75MHz,CDCl3)δ164.06,152.92,150.35,149.32,138.68,137.41,136.07,128.80,128.57,128.40,128.30,128.03,127.67,126.58,120.89,118.76,111.78,79.72,78.92,75.40,74.64,72.47,71.22,69.97,61.42,47.38. 實施例15 芐基巖白菜素2-甲基咪唑衍生物
制備過程如步驟(1)~(4),收率74%。
1H-NMR(300MHz,CDCl3)δ7.49-7.23(10H,m),7.01(3H,s),6.83(1H,s),5.18-5.08(2H,q,J=19.5Hz),4.99-4.86(2H,q,J=27.0Hz),4.01-3.94(6H,m),3.87(1H,t,J=9.0Hz),3.77(1H,t,J=9.0Hz),3.61(2H,s),3.48(1H,d,J=9.3Hz),3.77(1H,t,J=9.0Hz),2.36(3H,s). 13C-NMR(75MHz,CDCl3)δ164.00,152.97,149.99,149.31,146.15,137.16,136.11,128.83,128.69,128.50,127.68,126.69,126.32,121.03,118.70,111.78,79.60,75.50,74.78,72.40,71.27,70.68,61.39,46.59,12.84. 實施例16 芐基巖白菜素2-乙基咪唑衍生物
制備過程如步驟(1)~(4),收率82%。
1H-NMR(300MHz,CDCl3)δ7.50(1H,s),7.46-7.34(5H,m),7.28-7.20(3H,m),7.09(1H,s),6.96-6.90(3H,m),5.20-5.10(2H,q,J=19.8Hz),4.99-4.85(2H,q,J=29.4Hz),4.14-3.99(5H,m),3.90-3.83(2H,m),3.77(1H,t,J=8.4Hz),3.45-3.44(1H,m),3.25(1H,t,J=8.7Hz),2.78-2.73(2H,m),1.28(3H,t,J=7.5Hz). 13C-NMR(75MHz,CDCl3)δ164.05,152.93,150.62,149.93,149.27,137.04,136.07,128.80,128.43,127.65,126.76,126.57,121.01,118.62,111.71,79.80,79.56,75.44,74.69,72.29,71.22,70.92,61.34,46.33,19.83,12.24. 實施例17 芐基巖白菜素4,5-二甲基咪唑衍生物
制備過程如步驟(1)~(4),收率70%。
1H-NMR(300MHz,CDCl3)δ7.60(1H,s),7.52-6.99(11H,m),5.20-5.06(4H,m),4.26-4.17(2H,m),3.97-3.81(6H,m),3.52(1H,d,J=8.2Hz),3.03(1H,t,J=8.2Hz),2.18(6H,s). 13C-NMR(75MHz,CDCl3)δ164.03,152.55,150.31,149.66,138.64,137.12,136.56,132.45,129.03,128.87,128.21,128.10,128.02,127.66,126.34,118.71,111.70,79.22,78.55,75.41,74.63,72.46,71.65,69.53,61.22,47.37,13.23,10.51. 實施例18 芐基巖白菜素苯并咪唑衍生物
制備過程如步驟(1)~(4),收率75%。
1H-NMR(300MHz,CDCl3)δ8.11(1H,s),7.68-6.88(15H,m),5.12-4.81(4H,m),4.27(2H,s),4.00(3H,s),3.95(1H,d,J=9.9Hz),3.84-3.69(2H,m),3.57(1H,d,J=9.0Hz),3.21(1H,t,J=9.0Hz). 13C-NMR(75MHz,CDCl3)δ164.13,152.76,149.85,149.13,145.09,142.62,137.51,136.96,136.01,134.41,130.27,128.70,128.56,128.37,127.59,126.64,122.97,122.34,119.60,118.49,111.54,110.88,79.48,78.57,75.48,74.49,72.17,71.10,70.76,61.33,45.50. 實施例19 芐基巖白菜素二甲氧基苯并咪唑衍生物
制備過程如步驟(1)~(4),收率77%。
1H-NMR(300MHz,CDCl3)δ8.09(1H,s),7.68-6.88(13H,m),5.10-4.80(4H,m),4.26(2H,s),3.99(3H,s),3.93(1H,d,J=9.8Hz),3.82-3.68(2H,m),3.78(3H,s),3.75(3H,s),3.55(1H,d,J=9.0Hz),3.19(1H,t,J=9.0Hz). 13C-NMR(75MHz,CDCl3)δ164.19,152.55,149.42,149.89,145.11,144.65,142.56,142.33,137.67,136.32,136.19,134.56,130.28,128.72,128.55,128.23,127.89,126.33,119.65,111.55,110.81,102.25,79.53,78.52,75.26,74.64,72.76,71.13,70.56,61.72,56.23,56.04,45.98. 實施例20 芐基巖白菜素二甲基苯并咪唑衍生物
制備過程如步驟(1)~(4),收率77%。
1H-NMR(300MHz,CDCl3)δ8.08(1H,s),7.66-6.85(13H,m),5.09-4.79(4H,m),4.24(2H,s),3.97(3H,s),3.91(1H,d,J=9.8Hz),3.81-3.69(2H,m),3.53(1H,d,J=9.0Hz),3.17(1H,t,J=9.0Hz),2.21(3H,s),2.08(3H,s). 13C-NMR(75MHz,CDCl3)δ164.06,152.50,149.33,149.21,145.09,142.19,137.25,136.43,136.29,134.88,130.85,130.52,130.56,128.85,128.58,128.32,127.76,126.45,115.25,111.43,110.98,79.73,78.53,75.52,74.97,72.72,71.19,70.53,61.53,45.93,20.45,19.82. 實施例21 芐基巖白菜素甲基哌嗪衍生物
制備過程如步驟(1)~(4),收率75%。
1H-NMR(300MHz,CDCl3)δ7.54(1H,s),7.43-7.28(10H,m),5.17-4.94(4H,m),4.55(1H,d,J=10.5Hz),4.08(1H,t,J=9.9Hz),3.93-3.88(4H,m),3.61-3.47(2H,m),2.64-2.25(13H,m). 13C-NMR(75MHz,CDCl3)δ163.69,152.83,150.28,149.24,137.84,136.03,128.68,128.45,128.27,128.00,127.54,127.44,126.53,119.15,111.71,79.93,76.73,75.65,74.07,73.98,72.45,71.06,61.66,61.26,54.80,53.87,45.75. 實施例22 芐基巖白菜素乙基哌嗪衍生物
制備過程如步驟(1)~(4),收率70%。
1H-NMR(300MHz,CDCl3)δ7.56(1H,s),7.45-7.25(10H,m),5.15-4.94(4H,m),4.56(1H,d,J=10.2Hz),4.10(1H,t,J=9.9Hz),3.94-3.90(4H,m),3.59(1H,t,J=9.0Hz),3.51-3.48(1H,m),2.66-2.02(12H,m),1.06(3H,t,J=7.2Hz). 13C-NMR(75MHz,CDCl3)δ163.67,152.92,150.35,149.34,137.84,136.07,128.75,128.52,128.34,128.11,127.60,127.55,126.55,119.20,111.81,79.93,76.97,75.80,74.10,73.84,72.52,71.13,61.95,61.34,54.15,52.66,52.20,11.95. 實施例23 芐基巖白菜素苯基哌嗪衍生物
制備過程如步驟(1)~(4),收率78%。
1H-NMR(300MHz,CDCl3)δ7.58(1H,s),7.44-7.30(10H,m),7.08(2H,dd,J1=8.4Hz,J2=8.0Hz),6.64(1H,m),6.60(2H,d,J=8.4Hz),5.19-4.95(4H,m),4.57(1H,d,J=10.4Hz),4.10(1H,t,J=9.9Hz),3.93-3.88(4H,m),3.61-3.47(2H,m),2.68-2.27(10H,m). 13C-NMR(75MHz,CDCl3)δ163.65,152.32,150.11,149.65,149.20,137.23,136.01,129.78,128.63,128.25,128.13,128.01,127.23,127.05,126.65,119.17,118.29,114.53,111.21,79.89,76.65,75.34,74.01,73.57,72.32,71.01,61.36,61.17,54.56,53.43. 實施例24 芐基巖白菜素氟苯基哌嗪衍生物
制備過程如步驟(1)~(4),收率74%。
1H-NMR(300MHz,CDCl3)δ7.58(1H,s),7.47-7.33(10H,m),7.07-6.88(4H,m),5.16-4.98(4H,m),4.59(1H,d,J=10.5Hz),4.14(1H,t,J=9.9Hz),4.02-3.96(4H,m),3.65(1H,t,J=9.0Hz),3.57-3.54(1H,m),3.06(4H,s),2.82-2.78(2H,m),2.63-2.53(4H,m). 13C-NMR(75MHz,CDCl3)δ163.70,157.36,154.11,152.90,150.32,149.30,139.67,139.56,137.87,136.05,128.73,128.53,128.33,128.09,127.59,127.50,126.50,124.58,122.95,122.84,119.15,116.33,116.06,111.77,79.84,76.73,75.75,74.07,72.51,71.09,61.85,61.33,54.23,50.43. 實施例25 芐基巖白菜素二甲氨基丙基哌嗪衍生物
制備過程如步驟(1)~(4),收率65%。
1H-NMR(300MHz,CDCl3)δ7.51(1H,s),7.41-7.26(10H,m),5.11-4.92(4H,m),4.52(1H,d,J=10.2Hz),4.05(1H,d,J=9.9Hz),3.90-3.83(4H,m),3.57-3.47(2H,m),2.58-2.34(20H,m),1.73-1.71(2H,m). 13C-NMR(75MHz,CDCl3)δ163.70,152.78,150.27,149.20,137.79,135.99,128.66,128.43,128.25,127.98,127.51,127.47,126.57,119.12,111.66,79.94,76.73,75.71,74.25,73.96,72.45,71.03,61.65,61.24,57.30,55.95,53.92,52.95,44.75,23.99. 實施例26 芐基巖白菜素羥乙基丙基哌嗪衍生物
制備過程如步驟(1)~(4),收率75%。
1H-NMR(300MHz,CDCl3)δ7.57(1H,s),7.46-7.27(10H,m),5.16-4.96(4H,m),4.56(1H,d,J=10.2Hz),4.10(1H,t,J=10.2Hz),3.96-3.90(4H,m),3.64-3.48(5H,m),2.64-2.44(12H,m). 13C-NMR(75MHz,CDCl3)δ163.75,152.91,150.32,149.33,137.90,136.05,128.75,128.52,128.35,128.06,127.61,127.50,126.52,119.13,111.81,79.90,76.73,75.76,74.05,72.52,71.13,61.76,61.34,59.36,57.98,54.10,52.78. 實施例27 芐基巖白菜素甲酸乙酯基哌嗪衍生物
制備過程如步驟(1)~(4),收率77%。
1H-NMR(300MHz,CDCl3)δ7.56(1H,s),7.45-7.30(10H,m),5.15-4.94(4H,m),4.54(1H,d,J=10.2Hz),4.16-4.06(3H,m),3.96-3.90(4H,m),3.60(1H,t,J=9.0Hz),3.52-3.42(5H,m),2.58-2.51(3H,m),2.43-2.29(3H,m),1.25(3H,t,J=7.2Hz). 13C-NMR(75MHz,CDCl3)δ163.69,155.42,152.94,150.30,149.32,137.94,136.04,128.75,128.51,128.35,128.02,127.61,127.41,126.44,119.11,111.81,79.82,76.43,75.65,74.34,74.12,72.48,71.13,61.75,61.62,61.34,53.87,43.47,14.72. 實施例28 芐基巖白菜素甲酸甲酯基哌嗪衍生物
制備過程如步驟(1)~(4),收率72%。
1H-NMR(300MHz,CDCl3)δ7.57(1H,s),7.47-7.32(10H,m),5.16-4.95(4H,m),4.55(1H,d,J=10.2Hz),4.12(1H,m),3.97-3.91(4H,m),3.67(3H,s),3.62(1H,t,J=9.0Hz),3.53-3.43(5H,m),2.59-2.52(3H,m),2.44-2.30(3H,m). 13C-NMR(75MHz,CDCl3)δ163.67,155.41,152.86,150.28,149.37,137.43,136.96,128.84,128.32,128.27,128.03,127.78,127.56,126.37,119.17,111.56,79.75,76.83,75.46,74.98,74.34,72.33,71.75,61.43,61.98,53.75,52.13,43.52. 實施例29 巖白菜素咪唑衍生物
將相應(yīng)芐基巖白菜素咪唑衍生物實施步驟(5),收率65%。
1H-NMR(300MHz,DMSO-d6)δ7.68(1H,s),7.24(1H,s),7.00(1H,s),6.91(1H,s),4.92(1H,d,J=10.2Hz),4.50(1H,d,J=14.4Hz),4.19-4.12(1H,dd,J1=14.4Hz,J2=14.7Hz),3.86(1H,t,J=9.6Hz),3.76-3.63(4H,m),3.04(1H,t,J=9.3Hz). 13C-NMR(75MHz,DMSO-d6)δ163.61,151.17,147.97,140.82,138.03,128.21,120.43,118.33,115.86,109.69,79.78,79.32,73.34,72.06,70.87,59.76,47.08. 實施例30 巖白菜素2-甲基咪唑衍生物
將相應(yīng)芐基巖白菜素2-甲基咪唑衍生物實施步驟(5),收率50%。
1H-NMR(300MHz,DMSO-d6)δ7.21(1H,s),7.09(1H,s),7.08(1H,s),6.93(1H,s),4.54(1H,d,J=15.0Hz),4.26-4.18(1H,dd,J1=15.0Hz,J2=15.0Hz),3.99(1H,t,J=9.9Hz),3.87-3.80(5H,m),3.34-3.30(2H,m),2.46(3H,s). 13C-NMR(75MHz,DMSO-d6)δ165.91,152.22,149.26,142.37,126.24,122.04,119.69,117.38,111.23,81.20,81.03,75.33,73.98,72.69,60.94,12.53. 實施例31 巖白菜素2-乙基咪唑衍生物
將相應(yīng)芐基巖白菜素2-乙基咪唑衍生物實施步驟(5),收率50%。
1H-NMR(300MHz,CD3OD)δ7.31(1H,s),7.15(1H,s),6.98(1H,s),4.78(1H,d,J=10.5Hz),4.53(1H,d,J=15.3Hz),4.11-4.02(2H,m),3.93(3H,s),3.88-3.80(2H,m),3.40-3.34(2H,m),2.79-2.72(2H,m),1.32(3H,t,J=7.5Hz). 13C-NMR(75MHz,CD3OD)δ164.50,150.79,150.04,147.48,140.84,127.27,119.81,117.82,115.04,110.65,80.27,79.64,74.11,73.41,71.24,60.71,47.05,19.84,11.97。
實施例32 巖白菜素4,5-二甲基咪唑衍生物
將相應(yīng)芐基巖白菜素二甲基咪唑衍生物實施步驟(5),收率52%。
1H-NMR(300MHz,CDCl3)δ7.61(1H,s),7.25(1H,s),5.21-5.07(4H,m),4.26-4.13(2H,m),3.95-3.81(6H,m),3.51(1H,d,J=8.2Hz),3.02(1H,t,J=8.2Hz),2.18(3H,s),2.11(3H,s). 13C-NMR(75MHz,DMSO-d6)δ163.63,151.16,147.98,140.80,138.05,128.34,120.44,118.33,115.85,109.63,79.72,79.31,73.34,72.06,70.80,59.46,47.18,13.25,10.54. 實施例33 巖白菜素苯并咪唑衍生物
將相應(yīng)芐基巖白菜素苯并咪唑衍生物實施步驟(5),收率70%。
1H-NMR(300MHz,DMSO-d6)δ8.18(1H,s),7.63(1H,t,J=6.6Hz),7.26-7.16(2H,m),6.96(1H,s),5.88(1H,s),5.70(1H,s),4.90(1H,d,J=10.2Hz),4.73(1H,d,J=8.7Hz),4.52-4.45(1H,dd,J1=15.0Hz,J2=14.7Hz),3.85-3.69(6H,m),3.14-3.02(1H,m). 13C-NMR(75MHz,DMSO-d6)δ163.57,150.71,148.05,144.78,143.11,140.81,134.43,122.32,121.47,119.27,118.42,116.42,110.64,109.38,79.71,78.74,73.43,71.90,70.90,59.81,44.98. 實施例34 巖白菜素甲基哌嗪衍生物
將相應(yīng)芐基巖白菜素甲基哌嗪衍生物實施步驟(5),收率57%。
1H-NMR(300MHz,CD3OD)δ7.33(1H,s),7.15(1H,s),4.81(1H,d,J=10.5Hz),4.08(1H,t,J=9.6Hz),3.96(3H,s),3.86(1H,t,J=9.0Hz),3.45-3.37(2H,m),2.92-2.64(10H,m),2.45(3H,s). 13C-NMR(75MHz,CD3OD)δ164.59,150.77,147.73,140.98,117.83,115.64,110.32,79.88,76.73,74.13,73.31,73.00,60.59,59.58,54.55,52.45,44.99. 實施例35 巖白菜素乙基哌嗪衍生物
將相應(yīng)芐基巖白菜素乙基哌嗪衍生物實施步驟(5),收率55%。
1H-NMR(300MHz,CD3OD)δ7.35(1H,s),7.13(1H,s),4.82(1H,d,J=10.5Hz),4.09(1H,t,J=9.6Hz),3.98(3H,s),3.85(1H,t,J=9.0Hz),3.44-3.38(2H,m),2.91-2.62(10H,m),2.66-2.02(12H,m),1.06(3H,t,J=7.2Hz). 13C-NMR(75MHz,CD3OD)δ164.57,150.74,147.55,140.64,117.33,115.24,110.72,79.34,76.53,74.13,73.31,73.02,60.56,59.55,54.52,52.44,52.24,11.91. 實施例36 巖白菜素苯基哌嗪衍生物
將相應(yīng)芐基巖白菜素乙基哌嗪衍生物實施步驟(5),收率68%。
1H-NMR(300MHz,CDCl3)δ7.32(1H,s),7.06(2H,dd,J1=8.4Hz,J2=8.0Hz),6.65(1H,m),6.62(2H,d,J=8.4Hz),5.18-4.95(4H,m),4.55(1H,d,J=10.4Hz),4.08(1H,t,J=9.9Hz),3.91-3.86(4H,m),3.60-3.46(2H,m),2.65-2.26(10H,m). 13C-NMR(75MHz,CD3OD)δ164.69,150.37,149.62,147.71,140.96,129.66,118.35,117.81,115.61,114.26,110.55,79.84,76.00,74.32,73.32,73.03,60.56,59.48,54.58,52.42。
實施例37 巖白菜素氟苯基哌嗪衍生物
將相應(yīng)芐基巖白菜素氟苯基哌嗪衍生物實施步驟(5),收率95%。
1H-NMR(300MHz,CD3OD)δ7.26(1H,s),7.01-6.88(4H,m),4.78(1H,d,J=10.5Hz),4.05(1H,t,J=9.3Hz),3.90-3.69(7H,m),3.43(1H,t,J=9.0Hz),3.08(4H,s),2.90-2.84(1H,dd,J1=13.5Hz,J2=12.9Hz),2.78-2.66(5H,m). 13C-NMR(75MHz,CD3OD)δ164.56,157.37,154.11,150.58,147.68,140.86,139.81,139.69,124.52,122.86,122.76,119.07,117.79,116.28,116.00,115.71,110.21,79.86,76.60,74.13,73.64,73.12,60.67,60.18,53.81,50.56. 實施例38 巖白菜素二甲氨基丙基哌嗪衍生物
將相應(yīng)芐基巖白菜素二甲氨基丙基哌嗪衍生物實施步驟(5),收率68%。
1H-NMR(300MHz,CD3OD)δ7.42(1H,s),5.10-4.90(4H,m),4.51(1H,d,J=10.2Hz),4.03(1H,d,J=9.9Hz),3.90-3.84(4H,m),3.55-3.47(2H,m),2.57-2.32(20H,m),1.72-1.70(2H,m). 13C-NMR(75MHz,CD3OD)δ163.66,146.20,145.25,144.15,124.57,117.59,111.61,79.94,76.75,75.73,74.33,73.94,72.45,71.63,61.77,61.22,57.37,55.97,53.22,52.24,44.73,23.86. 實施例39 巖白菜素羥乙基丙基哌嗪衍生物
將相應(yīng)芐基巖白菜素羥乙基丙基哌嗪衍生物實施步驟(5),收率65%。
1H-NMR(300MHz,CD3OD)δ7.51(1H,s),5.13-4.94(4H,m),4.52(1H,d,J=10.2Hz),4.10(1H,t,J=10.2Hz),3.94-3.90(4H,m),3.63-3.42(5H,m),2.63-2.44(12H,m). 13C-NMR(75MHz,CD3OD)δ163.62,146.15,145.55,144.34,124.55,117.75,111.97,79.95,76.73,75.73,74.12,72.53,71.13,61.76,61.35,59.34,57.93,54.14,52.77。
實施例40 巖白菜素甲酸乙酯基哌嗪衍生物
將相應(yīng)芐基巖白菜素甲酸乙酯基哌嗪衍生物實施步驟(5),收率70%。
1H-NMR(300MHz,CD3OD)δ7.52(1H,s),5.14-4.93(4H,m),4.51(1H,d,J=10.2Hz),4.13-4.03(3H,m),3.92-3.88(4H,m),3.58(1H,t,J=9.0Hz),3.50-3.40(5H,m),2.55-2.49(3H,m),2.41-2.27(3H,m),1.26(3H,t,J=7.2Hz). 13C-NMR(75MHz,CD3OD)δ163.24,155.79,146.16,145.34,144.67,124.45,117.78,111.92,79.89,76.40,75.60,74.64,74.29,72.48,71.24,61.52,61.64,61.37,53.87,43.47,14.78. 實施例41 巖白菜素甲酸甲酯基哌嗪衍生物
將相應(yīng)芐基巖白菜素甲酸甲酯基哌嗪衍生物實施步驟(5),收率75%。
1H-NMR(300MHz,CD3OD)δ7.53(1H,s),5.12-4.90(4H,m),4.53(1H,d,J=10.2Hz),4.15(1H,m),3.93-3.88(4H,m),3.69(3H,s),3.61(1H,t,J=9.0Hz),3.54-3.45(5H,m),2.59-2.54(3H,m),2.45-2.30(3H,m). 13C-NMR(75MHz,CD3OD)δ163.62,155.45,146.76,145.57,144.64,124.35,117.75,111.89,79.45,76.74,75.26,74.85,74.25,72.37,71.79,61.47,61.93,53.71,52.16,43.57。
權(quán)利要求
1.具有下述結(jié)構(gòu)通式(I)的巖白菜素類衍生物
(1)當(dāng)R=Bn,Me,Et時,R′=OH
(2)當(dāng)R=Bn時,R′=OTs,OMs,OTBS,I,Br,Cl,
NHBn,NHCH2Ph(OCH3)-4,NHCH2Ph(I)-4,NHCH2Ph(Br)-4,NHCH2Ph(Cl)-4,
(3)當(dāng)R=OH時,
2.一種如權(quán)利要求1所述的巖白菜素類衍生物的制備方法,其特征在于步驟如下
(1)、巖白菜素酚羥基的保護(hù)
以巖白菜素為原料,加入鹵化芐或鹵代甲烷或鹵代乙烷和碳酸鉀,摩爾數(shù)比例為1/2~5/6~10,加入N,N-二甲基甲酰胺,使原料完全溶解后,室溫至60℃攪拌反應(yīng)24~72小時;減壓蒸干N,N-二甲基甲酰胺后,加入體積比例為3/1的乙酸乙酯和水,分出有機(jī)層后,水層再用乙酸乙酯萃取3~5次;合并有機(jī)相,用飽和食鹽水洗至中性,經(jīng)無水硫酸鈉干燥后過濾,減壓蒸干溶劑得到白色粉末狀固體產(chǎn)物巖白菜素酚羥基保護(hù)物;
(2)、巖白菜素醇羥基的反應(yīng)
以步驟(1)產(chǎn)物為原料,加入氯化物和吡啶、叔胺或碳酸鉀,摩爾數(shù)比例為1/2~3/5~8,加入二氯甲烷使原料完全溶解后,于0℃至室溫攪拌反應(yīng)24~72小時;減壓蒸干吡啶或叔胺后,加入體積比例為3/1的二氯甲烷和水,分出有機(jī)層后,水層用二氯甲烷萃取3~5次;合并有機(jī)相,用飽和食鹽水洗至中性,經(jīng)無水硫酸鈉干燥后過濾,減壓蒸干溶劑得粗品,經(jīng)硅膠柱層析后,得到白色粉末狀固體產(chǎn)物巖白菜素醇羥基反應(yīng)物;
(3)、巖白菜素鹵化物的制備
以步驟(2)產(chǎn)物為原料,加入鹵化鈉或鹵化鉀,摩爾數(shù)比例為1/1~3,以丙酮為溶劑回流反應(yīng)3~5天;減壓蒸干丙酮后用二氯甲烷溶解,過濾除去固體,濾液蒸干后得到粗品,經(jīng)硅膠柱層析后,得到白色粉末狀固體巖白菜素鹵化物;
(4)、巖白菜素衍生物的制備
以步驟(2)產(chǎn)物或步驟(3)產(chǎn)物為原料,加入胺或咪唑類化合物,摩爾數(shù)比例為1/1~5,以N,N-二甲基甲酰胺為溶劑,90℃下回流反應(yīng)20~60小時;減壓蒸干N,N-二甲基甲酰胺后,加入體積比例為3/1的二氯甲烷和水,分出有機(jī)層后,水層用二氯甲烷萃取3~5次;合并有機(jī)相,用飽和食鹽水洗至中性,經(jīng)無水硫酸鈉干燥后過濾,減壓蒸干溶劑得粗品,經(jīng)硅膠柱層析后,得到白色粉末狀固體巖白菜素衍生物;
(5)、巖白菜素衍生物脫芐基反應(yīng)
以步驟(4)產(chǎn)物為原料,按原料質(zhì)量5~20%的比例加入鈀碳催化劑,以甲醇為溶劑,在氫氣氛下20~50℃反應(yīng)20~60小時;過濾除去鈀碳催化劑,減壓蒸干溶劑得粗品,經(jīng)硅膠柱層析后,得到白色粉末狀固體巖白菜素衍生物脫芐基產(chǎn)物。
全文摘要
一種巖白菜素類衍生物及其制備方法,以巖白菜素、芐基鹵化物等主要原料,首先制備酚羥基保護(hù)的巖白菜素化合物,在此基礎(chǔ)上將其醇羥基進(jìn)行修飾改造,合成了一系列巖白菜素類衍生物;該合成方法從易得的天然產(chǎn)物出發(fā),合成方法簡便,具有較好的可操作性和反應(yīng)收率;本發(fā)明為探討巖白菜素新的用途提供了科學(xué)依據(jù),對新藥的研發(fā)具有重要意義。
文檔編號C07F7/18GK101812068SQ20101012915
公開日2010年8月25日 申請日期2010年3月22日 優(yōu)先權(quán)日2010年3月22日
發(fā)明者劉建平, 陳靜波, 劉娜娜, 張洪彬, 羊曉東, 趙靜峰 申請人:云南大學(xué)