CN101497614A - 1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2-取代乙酸甲酯及其制备和应用 - Google Patents
1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2-取代乙酸甲酯及其制备和应用 Download PDFInfo
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- Nitrogen Condensed Heterocyclic Rings (AREA)
Abstract
本发明公开了具有舒血管活性的通式(I)的化合物,或其药物可接受的盐,其中,R为-CH(CH3)CH2CH3、-CH(CH3)2、-CH2CH(CH3) 2、-CH3、H、-CH2C6H5、-CH2C6H4-OH-p、吲哚-5-基亚甲基、咪唑-4-基亚甲基、-CH2CH2SCH3、-CH2CO2CH3、-CH2CH2CO2CH3、-CH2OH、-CH(OH)CH3、-CH2CH2CH2NHC(NH)NH2、-CH2CONH2或-CH2CH2CONH2。
Description
技术领域
本发明涉及具有舒血管活性的1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2-取代乙酸甲酯或其药物可接受的盐,以及其制备和在作为血管舒张剂的应用。
背景技术
血管痉挛是包括血栓、血管狭窄、高血压、偏头痛和肌体局部供血不足等多种疾病的重要病因。
寻找新型血管舒张剂是新药研究和开发的热点之一。发明人在吲哚类药物研究中发发现,1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚环是血管舒张药效团,可以作为一种血管舒张剂的母核结构。发明人由此提出了本发明的化合物,并经试验验证其确实具有舒血管活性,可以用作血管舒张剂。
发明内容
本发明提供了具有以下通式(I)的化合物,或其药物可接受的盐
其中,R为-CH(CH3)CH2CH3、-CH(CH3)2、-CH2CH(CH3)2、-CH3、H、-CH2C6H5、-CH2C6H4-OH-p、吲哚-5-基亚甲基、咪唑-4-基亚甲基、-CH2CH2SCH3、-CH2CO2CH3、-CH2CH2CO2CH3、-CH2OH、-CH(OH)CH3、-CH2CH2CH2NHC(NH)NH2、-CH2CONH2或-CH2CH2CONH2。
本发明还提供了上述通式(I)的化合物的制备方法,该方法可以以已知的化合物作为原料来进行。
本发明制备通式(I)的化合物的方法包括:通过已知化合物3S-N-Boc-四氢-β-咔啉-3-羧酸(以下路线图中的式IV化合物)与氨基酸甲酯(以下路线图中的式III化合物)进行偶联得到3S-N-Boc-四氢-β-咔啉-3-酰基氨基酸甲酯(式II化合物),参见以下路线图中的步骤iii,缩合反应可以通过常规方法进行,例如可以在二环己基羰二亚胺(DCC)、N-羟基苯并三唑(HOBt)和N甲基吗啉(NMM)存在下进行;然后式II化合物脱去Boc保护基后与再与丙酮环合即得到通式(I)的化合物。所述脱去Boc保护基的反应可以用常规方法进行,例如用用氯化氢/乙酸乙酯溶液进行。所述与丙酮环合优选在PH9左右下进行。
其中,作为原料的式IV的3S-N-Boc-四氢-β-咔啉-3-羧酸化合物也可以从已知化合物来制备得到,例如,通过在硫酸催化下L-色氨酸与甲醛缩合制备3S-四氢-β-咔啉-3-羧酸、然后3S-四氢-β-咔啉-3-羧酸再与Boc2O反应来制得3S-N-Boc-四氢-β-咔啉-3-羧酸(式IV化合物)。
作为本发明制备方法的一个优选实施方式,提供包括以下步骤的优选方法:
(1)在硫酸催化下L-色氨酸与甲醛缩合制备3S-四氢-β-咔啉-3-羧酸;
(2)3S-四氢-β-咔啉-3-羧酸与Boc2O反应制备3S-N-Boc-四氢-β-咔啉-3-羧酸;
(3)3S-N-Boc-四氢-β-咔啉-3-羧酸与氨基酸甲酯偶联制备3S-N-Boc-四氢-β-咔啉-3-酰基氨基酸甲酯;
(4)用氯化氢/乙酸乙酯溶液(4N)脱3S-N-Boc-四氢-β-咔啉-3-酰基氨基酸甲酯的Boc基,制备3S-四氢-β-咔啉-3-酰基氨基酸甲酯;
(5)在大约pH9下将3S-四氢-β-咔啉-3-酰基氨基酸甲酯与丙酮环合制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2-取代乙酸甲酯。
上述优选方法参照以下线路图A进行说明:
其中,各步反应的具体条件为:i)稀硫酸、甲醛;ii)(Boc)2O、DCC;iii)DCC、HOBt、NMM;iv)4N HCl/EtOAc、甲醇、丙酮、三乙胺。
本发明提供的1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2-取代乙酸甲酯化合物或其药学可接受的盐,具有良好的舒血管活性,可以用作血管舒张剂。
本发明还提供了一种药物组合物,其含有上述通式(I)的1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2-取代乙酸甲酯化合物或其药学可接受的盐,还含有药物可接受的载体和/或赋形剂。
具体实施方式
以下通过具体实施例来进一步描述本发明,本发明的特点和有点会随着这些描述而更清楚。但这些实施例仅仅是范例性的,并不对本发明的范围构成任何限制。
制备实施例
实施例1 1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶
[3,4-b]并吲哚-2S-(1’-甲基丙基)乙酸甲酯的制备
1)制备3S-四氢-β-咔啉-3-羧酸
将400ml水置于500ml的圆底烧瓶中,缓慢加入0.2ml浓硫酸。往得到的稀硫酸水溶液中加入5.0g(24.5mmol)L-色氨酸并超声振荡至L-色氨酸完全溶解。往得到的溶液中加入10ml浓度为35%的甲醛溶液。反应混合物室温搅拌6小时,薄层层析监测到L-色氨酸消失,终止反应。往反应溶液中缓慢滴加浓氨水,调节反应混合物至pH 6,静置半小时。经减压滤出的缩生成沉淀用水洗涤,将滤出的无色固体平铺于培养皿,置于柜子中空气干燥后得S-咔啉羧酸,为无色固体5.05g(95.4%)。
Mp 280-282℃;EI/MS:217[M+H]+;IR(KBr):3450,3200,3000,2950,2850,1700,1601,1452,1070,900cm-1;1H NMR(BHSC-500,DMSO-d6):δ=10.99(s,1H),9.89(s,1H),7.30(t,J=7.5Hz,1H),7.22(t,J=8.0Hz,1H),7.01(d,J=8.0Hz,1H),6.81(d,J=7.5Hz,1H),4.01(t,J=4.8Hz,1H),3.75(dd,J=10.5Hz,J=5.0Hz,1H),3.64(dd,J=10.5Hz,J=2.4Hz,1H),2.91(d,J=10.5Hz,2H),2.86(s,1H)。
元素分析:C12H12N2O2:理论值C 66.65,H,5.59,N 12.96;实测值C 66.45,H5.72,N 12.79。
2)制备N-Boc-S-咔啉羧酸
将4.0g(18.5mmol)S-咔啉羧酸悬浮于40ml DMF中。在冰浴中、搅拌下往该悬浮液中加入5.2g(23.9mmol)Boc2O。加三乙胺将反应混合物的pH值调至10,反应混合物在室温搅拌48小时,薄层层析监测至S-咔啉羧酸消失,终止反应。将反应液倒入表面皿,在风扇下吹约24小时至干。将吹干的油状物用200ml乙酸乙酯溶解,然后置于250ml分液漏斗中,用KHSO4(5%)水溶液洗涤(20ml×3)。分出合并的乙酸乙酯层,在250ml三角瓶中加入无水硫酸钠干燥0.5h,常压过滤。滤液减压浓缩至干,析出白色固体。得到的白色固体中加入氯仿,减压过滤,得到N-Boc-S-咔啉羧酸,为无色固体4.50g(76.9%)。
Mp165-170℃;TOF/MS:317[M+H]+339[M+Na]+,355[M+K];IR(KBr):3452,3205,3001,2952,2848,1705,1645,1600,1450,1072,901cm-1;1H NMR(BHSC-500,DMSO-d6):δ=10.873(s,1H),9.862(s,1H),7.325(t,J=7.6Hz,1H),7.214(t,J=7.9Hz,1H),7.006(d,J=7.9Hz,1H),6.844(t,J=7.6Hz,1H),4.841(t,J=5.0Hz,1H),4.202(dd,J=10.2Hz,J=4.8Hz,1H),3.980(dd,J=10.2Hz,J=3.2Hz,1H),2.933(d,J=10.2Hz,2H),1.462(s,9H)。
元素分析:C17H20N2O4:理论值C 64.54,H,6.37,N 8.86;实测值C 64.41,H 6.25,N 8.74。
3)制备N-Boc-S-咔啉酰-L-异亮氨酸甲酯
在冰浴冷却下往置于150ml烧瓶中的由1.20g(6.61mmol)盐酸L-异亮氨酸甲酯、2.00g(6.33mmol)N-Boc-S-咔啉羧酸、0.90g(6.67mmol)N-羟基苯并三唑(HOBt)和1.20g(6.61mmol)HCl·Ile-OMe与70ml THF构成的溶液中滴入1.70g(8.33mmol)二环己基羰二亚胺(DCC)和5ml THF构成的溶液。往得到的溶液通过滴入N甲基吗啉(NMM)与THF的溶液调pH值到8。反应混合物在0℃搅拌2小时后抽滤,滤液减压浓缩至干。得到的残余物用150ml乙酸乙酯溶解,置于250ml分液漏斗中,依次用饱和碳酸氢钠水溶液洗(30ml×3)、饱和氯化钠水溶液洗(30ml×3)、5%硫酸氢钾水溶液洗(30ml×3)、饱和氯化钠水溶液洗(30ml×3)、饱和碳酸氢钠水溶液洗(30ml×3)和饱和氯化钠水溶液洗(30ml×3)。合并的乙酸乙酯层用无水硫酸钠干燥,过滤,滤液减压浓缩至干,得到2.70g(99%)目标化合物,为无色固体。
IR(KBr):3445,3203,3006,2953,2842,1727,1644,1607,1452,1394,1372,1062,900cm-1;ESI+-MS(m/e)444[M+H]+;1H NMR(BHSC-500,DMSO-d6):δ=10.045(s,1H),7.965(s,1H),7.293(t,J=7.4Hz,1H),7.214(t,J=7.4Hz,1H),7.007(d,J=7.4Hz,1H),6.895(d,J=7.4Hz,1H),4.842(t,J=5.4Hz,1H),4.425(d,J=5.4Hz,1H),4.226(dd,J=10.2Hz,J=4.5Hz,1H),4.039(dd,J=10.2Hz,J=3.7Hz,1H),3.622(s,3H),2.953(d,J=6.7Hz,2H),2.877(m,J=6.0Hz,1H),1.473(s,9H),1.350(m,J=5.4Hz,2H),1.053(d,J=5.4Hz,3H),1.001(t,J=5.4Hz,3H)。
元素分析:C24H33N3O5:理论值C 64.99,H7.50,N 9.47;实测值C 65.13,H7.61,N 9.33。
4)制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(1’-甲基丙基)乙酸甲酯
将2.0g(4.51mmol)N-Boc-S-咔啉酰-L-异亮氨酸甲酯置于100ml茄形瓶中并用8ml乙酸乙酯溶解。在冰浴下往得到的溶液中缓慢滴入16ml 4N HCl/EtOAc。反应混合物在0℃搅拌1.5小时后减压浓缩至干。残留物溶于60ml甲醇和20ml丙酮的混合溶剂中,用三乙胺调整pH值到9,避光反应7-10天,薄层层析监测至N-Boc-S-咔啉酰-L-异亮氨酸甲酯消失,终止反应。反应混合物减压浓缩至干,残留物用200ml乙酸乙酯溶解,溶液置于250ml分液漏斗中并用30ml饱和氯化钠水溶液洗涤(30ml×8)。洗涤后的乙酸乙酯层用无水硫酸钠干燥,0.5h后过滤。滤液减压浓缩至干。残留物用5ml甲醇溶解、静置、滤出0.8g(46%)目标化合物,为淡黄色固体。
ESI+-MS(m/e)384[M+H]+;1H-NMR(CDCl3,300MHzδ=8.100(s,1H),7.425(t,J=7.5Hz,1H),7.252(t,J=7.5Hz,1H),7.093(d,J=7.5Hz,1H),7.060(d,J=7.5Hz,1H),4.391(t,J=6.6Hz,1H),3.914(t,J=6.6Hz,1H),3.763(dd,J=10.5Hz,J=4.2Hz,2H),3.666(s,3H),2.931(m,J=6.2Hz,1H),2.725(d,J=6.6Hz,2H),1.489(m,J=6.0Hz,2H),1.440(s,3H),1.209(s,3H),0.922(d,J=6.6Hz,3H),0.853(t,J=6.6Hz,3H)。
13C-NMR(CDCl3,300MHz)δ=171.911,171.243,136.257,131.082,127.109,121.612,119.519,118.076,110.749,108.013,78.953,60.665,57.410,52.135,41.569,33.937,25.457,24.929,23.883,18.657,16.391,11.207。
元素分析:C22H29N3O3:理论值C 68.90,H 7.62,N 10.96;实测值C68.77,H 7.53,N 10.96。
实施例2 1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶
[3,4-b]并吲哚-2S-异丙基乙酸甲酯的制备
1)制备N-Boc-S-咔啉酰-L-缬氨酸甲酯
按照实施例1制备N-Boc-S-咔啉酰-L-异亮氨酸甲酯的方法,由2.00g(6.33mmol)盐酸L-缬氨酸甲酯制得2.65g(97.5%)目标化合物,为无色固体。
Mp 138-140℃;ESI/MS 430[M+H]+.IR(KBr):3443,3202,3001,2951,2845,1729,1648,1602,1450,1392,1370,1067,902cm-1;1H NMR(BHSC-500,DMSO-d6):δ=10.043(s,1H),7.962(s,1H),7.295(t,J=7.4Hz,1H),7.211(t,J=7.7Hz,1H),7.004(d,J=7.7Hz,1H),6.892(d,J=7.4Hz,1H),4.840(t,J=5.4Hz,1H),4.423(d,J=5.4Hz,1H),4.225(dd,J=10.2Hz,J=4.5Hz,1H),4.037(dd,J=10.2Hz,J=3.7Hz,1H),3.626(s,3H),3.103(m,J=5.4Hz,1H),2.951(d,J=6.7Hz,2H),1.474(s,9H),1.053(d,J=5.4Hz,6H)。
元素分析:C23H31N3O5:理论值C 64.32,H 7.27,N 9.78;实测值C 64.43,H7.09,N 9.67。
2)制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-异丙基乙酸甲酯
按照实施例1制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(1’-甲基丙基)乙酸甲酯的方法,由2.00g(4.66mmol)N-Boc-S-咔啉酰-L-缬氨酸甲酯制得0.96g(56%)目标化合物,为无色固体。
ESI+-MS(m/e)370[M+H]+;1H-NMR(CDCl3,300MHz)δ=8.251(s,1H),7.503(t,J=7.5Hz,1H),7.313(t,J=7.5Hz,1H),7.127(d,J=7.5Hz,1H),7.102(d,J=7.5Hz,1H),3.981(d,J=6.5Hz,1H),3.844(t,J=5.5Hz,1H),3.735(s,3H),3.477(dd,J=4.5Hz,J=10.8Hz,1H),3.194(dd,J=4.5Hz,J=10.8Hz,1H),2.951(m,J=5.5Hz,1H),2.726(d,J=5.5Hz,2H),1.505(s,3H),1.442(s,3H),1.206(m,J=6.6Hz,3H),0.999(m,J=6.6Hz,3H)。13C-NMR(CDCl3,300MHz):δ=172.637,170.185,136.249,130.974,127.175,121.736,119.650,118.183,110.700,108.326,78.846,61.728,57.393,52.193,41.652,33.937,27.773,23.899,20.504,19.828,18.814。
元素分析:C21H27N3O3:理论值C 68.27,H 7.37,N 11.37;实测值C68.14,H 7.25,N 11.23。
实施例3 1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶
[3,4-b]并吲哚-2S-(2’-甲基丙基)乙酸甲酯的制备
1)制备N-Boc-S-咔啉酰-L-异亮氨酸甲酯
按照实施例1制备N-Boc-S-咔啉酰-L-异亮氨酸甲酯的方法,由1.20g(6.61mmol)盐酸L-亮氨酸甲酯制得2.78g(99.2%)目标化合物,为无色固体。
IR(KBr):3443,3205,3002,2954,2845,1724,1642,1605,1455,1392,1370,1065,903cm-1;ESI+-MS(m/e)444[M+H]+;1H NMR(BHSC-500,DMSO-d6):δ=10.043(s,1H),7.962(s,1H),7.291(t,J=7.4Hz,1H),7.212(t,J=7.4Hz,1H),7.004(d,J=7.4Hz,1H),6.891(d,J=7.4Hz,1H),4.840(t,J=5.4Hz,1H),4.422(d,J=5.4Hz,1H),4.224(dd,J=10.2Hz,J=4.5Hz,1H),4.036(dd,J=10.2Hz,J=3.7Hz,1H),3.625(s,3H),2.950(d,J=6.7Hz,2H),1.877(d,J=6.0Hz,2H),1.473(s,9H),1.852(m,J=5.4Hz,1H),1.055(d,J=5.4Hz,6H)。
元素分析:C24H33N3O5:理论值C 64.99,H 7.50,N 9.47;实测值C 65.15,H7.63,N 9.60。
2)制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(2’-甲基丙基)乙酸甲酯
按照实施例1制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(1’-甲基丙基)乙酸甲酯的方法,由2.00g(4.51mmol)N-Boc-S-咔啉酰-L-亮氨酸甲酯制得1.14g(65%)目标化合物,为无色固体。
Mp 204-206℃;ESI+-MS(m/e)384[M+H]+;1H-NMR(CDCl3,300MHz)δ=8.503(s,1H),7.434(t,J=7.2Hz,1H),7.254(d,J=7.2Hz,1H),7.064(d,J=7.2Hz,1H),7.007(d,J=7.2Hz,1H),4.438(t,J=4.9Hz,1H),3.997(t,J=5.2Hz,1H),3.664(s,3H),3.430(dd,J=4.2Hz,J=10.5Hz,1H),3.089(dd,J=4.2Hz,J=10.5Hz,1H),2.734(d,J=5.2Hz,2H),2.189(m,J=4.9Hz,2H),1.888(m,J=4.9Hz,1H),1.432(s,3H),1.273(s,3H),0.921(d,J=4.9Hz,6H)。13C-NMR(CDCl3,300MHz)δ=171.647,171.342,136.266,131.123,127.159,121.637,119.535,118.093,110.758,108.087,78.475,57.360,52.852,52.465,41.668,39.064,25.210,25.061,23.611,22.473,22.374,19.787。
元素分析:C22H29N3O3:理论值C 68.90,H 7.62,N 10.96;实测值C68.79,H 7.75,N 11.17。
实施例4 1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶
[3,4-b]并吲哚-2S-甲基乙酸甲酯的制备
1)制备N-Boc-S-咔啉酰-L-丙氨酸甲酯
按照实施例1制备N-Boc-S-咔啉酰-L-异亮氨酸甲酯的方法,由1.20g(6.61mmol)盐酸L-丙氨酸甲酯制得2.43g(95.6%)目标化合物,为无色固体。
Mp 144-146℃;ESI/MS 402[M+H]+;IR(KBr):3451,3011,2949,2847,1730,1604,1450,1392,1370,1066,897cm-1;1H NMR(BHSC-500,DMSO-d6):δ=9.891(s,1H),7.980(s,1H),7.323(t,J=7.5Hz,1H),7.235(t,J=7.8Hz,1H),6.972(d,J=7.8Hz,1H),6.813(d,J=7.5Hz,1H),4.884(d,J=5.2Hz,1H),4.591(m,J=5.5Hz,1H),4.255(dd,J=10.0Hz,J=4.7Hz,1H),4.172(dd,J=10.1Hz,J=3.5Hz,1H),3.644(s,3H),2.94(d,J=10.1Hz,2H),1.556(d,J=5.2Hz,3H),1.437(s,9H)。
元素分析:C21H27N3O5:理论值C 62.83,H,6.78,N 10.47;实测值C 62.92,H 6.74,N 10.30。
2)制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-甲基乙酸甲酯
按照实施例1制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(1’-甲基丙基)乙酸甲酯的方法,由2.00g(4.99mmol)N-Boc-S-咔啉酰-L-丙氨酸甲酯制得0.69g(41%)目标化合物,为无色固体。
ESI+-MS(m/e)342[M+H]+;1H-NMR(CDCl3,300MHz)δ=8.328(s,1H),7.437(t,J=7.2Hz,1H),7.256(d,J=7.2Hz,1H),7.053(d,J=7.2Hz,1H),7.000(d,J=7.2Hz,1H),4.431(t,J=4.8Hz,1H),3.990(t,J=5.4Hz,1H),3.660(s,3H),3.423(dd,J=4.3Hz,J=10.0Hz,1H),3.088(dd,J=4.3Hz,J=10.0Hz,1H),2.741(d,J=5.4Hz,2H),1.490(d,J=4.8Hz,3H),1.433(s,3H),1.271(s,3H)。13C-NMR(CDCl3,300MHz)δ=173.555,170.811,136.706,131.442,127.725,122.304,120.113,118.905,111.202,108.890,70.879,60.131,51.011,44.551,42.107,30.113,29.107,25.004,14.115。
元素分析:C19H23N3O3:理论值C 66.84,H 6.79,N 12.31;实测值C 66.73,H 6.67,N 12.48。
实施例5 1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶
[3,4-b]并吲哚-2S-(吲哚-5-基亚甲基)乙酸甲酯的制备
1)制备N-Boc-S-咔啉酰-L-色氨酸甲酯
按照实施例1制备N-Boc-S-咔啉酰-L-异亮氨酸甲酯的方法,由2.00g(6.33mmol)盐酸L-色氨酸甲酯制得2.39g(97.6%)目标化合物,为无色固体。
Mp 133-135℃;ESI/MS 388[M+H]+。IR(KBr):3448,3010,2945,2843,1732,1600,1453,1390,1371,1062,899cm-1;1H NMR(BHSC-500,DMSO-d6):δ=9.934(s,1H),8.025(s,1H),7.302(t,J=7.5Hz,1H),7.201(t,J=7.6Hz,1H),6.955(d,J=7.6Hz,1H),6.836(d,J=7.6Hz,1H),4.891(d,J=5.4Hz,1H),4.223(dd,J=10.2Hz,J=4.5Hz,1H),4.182(s,2H),4.194(dd,J=10.2Hz,J=3.7Hz,1H),3.663(s,3H),2.95(d,J=10.1Hz,2H),1.455(s,9H)。[α]D 20=-101°(c=0.36,CHCl3:CH3OH,1:1,v/v)。
元素分析:C20H25N3O5:理论值C 62.00,H,6.50,N 10.85;实测值C 62.15,H 6.68,N 10.68。
2)制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(吲哚-5-基亚甲基)乙酸甲酯
按照实施例1制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(1’-甲基丙基)乙酸甲酯的方法作,由2.00g(5.17mmol)N-Boc-S-咔啉酰-L-色氨酸甲酯制得0.76g(45%)目标化合物,为无色固体。
ESI-MS(m/e)329[M+H]+;1H-NMR(CDCl3,300MHz)δ=8.522(s,1H),7.439(t,J=7.4Hz,1H),7.260(d,J=7.4Hz,1H),7.058(d,J=7.4Hz,1H),7.007(d,J=7.4Hz,1H),4.335(s,2H),3.977(t,J=5.6Hz,1H),3.662(s,3H),3.431(dd,J=4.1Hz,J=10.2Hz,1H),3.092(dd,J=4.1Hz,J=10.2Hz,1H),2.744(d,J=5.6Hz,2H),1.430(s,3H),1.276(s,3H)。13C-NMR(CDCl3,300MHz)δ=172.167,170.825,136.651,131.224,124.333,121.922,120.400,119.113,111.363,109.223,71.112,61.166,50.958,44.551,42.867,30.200,29.535,25.531。
元素分析:C18H21N3O3:理论值C 66.04,H 6.47,N 12.84;实测值C 66.20,H 6.59,N 12.33。
实施例6 1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶
[3,4-b]并吲哚-2S-苄基乙酸甲酯的制备
1)制备N-Boc-S-咔啉酰-L-苯丙氨酸甲酯
按照实施例1制备N-Boc-S-咔啉酰-L-异亮氨酸甲酯的方法,由1.42g(6.61mmol)盐酸L-苯丙氨酸甲酯制得2.99g(99.0%)目标化合物,为无色固体。
Mp 150-152℃;ESI/MS 478[M+H]+;IR(KBr):3446,3205,3006,2948,2847,1731,1645,1603,1451,1392,1370,1069,904cm-1;1H NMR(BHSC-500,DMSO-d6):δ=9.920(s,1H),7.971(s,1H),7.314(t,J=7.5Hz,1H),7.282(t,J=7.9Hz,2H),7.195(t,J=7.6Hz,1H),7.140(d,J=7.6Hz,2H),7.025(t,J=7.6Hz,1H),6.963(d,J=7.8Hz,1H),6.807(d,J=7.6Hz,1H),4.935(d,J=5.4Hz,1H),4.822(t,J=5.4Hz,1H),4.274(dd,J=10.2Hz,J=4.5Hz,1H),4.185(dd,J=10.2Hz,J=3.4Hz,1H),3.625(s,3H),3.17(d,J=5.4Hz,2H),2.930(d,J=10.2Hz,2H),1.483(s,9H)。
元素分析:C27H31N3O5:理论值C 67.91,H 6.54,N 8.80;实测值C 67.72,H6.62,N 8.67。
2)制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-苄基乙酸甲酯
按照实施例1制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(1’-甲基丙基)乙酸甲酯的方法,由2.00g(4.19mmol)N-Boc-S-咔啉酰-L-苯丙氨酸甲酯制得0.98g(56%)目标化合物,为无色固体。
ESI-MS(m/e)418[M+H]+;1H-NMR(CDCl3,300MHz)δ=8.807(s,1H),7.416(t,J=7.2Hz,1H),7.271(t,J=7.5Hz,2H),7.259(d,J=7.2Hz,1H),7.144(d,J=7.5Hz,2H),7.079(t,J=7.5Hz,1H),7.058(d,J=7.2Hz,1H),7.006(d,J=7.2Hz,1H),4.988(t,J=4.5Hz,1H),4.372(dd,J=4.5Hz,J=10.5Hz,1H,),3.689(s,3H),3.564(d,J=4.5Hz,2H),3.275(d,J=5.5Hz,2H),2.910(d,J=4.5Hz,2H),1.281(s,3H),1.344(s,3H)。13C-NMR(DMSO-d6,300MHz)δ=171.144,170.443,138.284,136.042,135.886,132.540,132.391,129.804,128.279,126.606,120.548,118.422,112.551,105.754,77.955,56.766,56.049,52.299,41.198,33.789,24.319,23.346,22.882。
元素分析:C25H27N3O3:理论值C 71.92,H 6.52,N 10.06;实测值C 71.79,H 6.44,N 10.20。
实施例7 1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶
[3,4-b]并吲哚-2S-对羟基苄基乙酸甲酯的制备
1)制备N-Boc-S-咔啉酰-L-酪氨酸甲酯
按照实施例1制备N-Boc-S-咔啉酰-L-异亮氨酸甲酯的方法,由1.53g(6.61mmol)盐酸L-酪氨酸甲酯制得2.87g(92%)目标化合物,为无色固体。
Mp 143-145℃;ESI-MS 494[M+H]+;IR(KBr):3439,3203,3001,2955,2847,1732,1644,1601,1453,1391,1372,1062,903cm-1;1H NMR(BHSC-500,DMSO-d6):δ=9.990(s,1H),8.024(s,1H),7.371(t,J=7.6Hz,1H),7.223(t,J=7.7Hz,1H),7.152(d,J=7.5Hz,2H),7.024(d,J=7.5Hz,1H),6.961(d,J=7.7Hz,1H),6.915(d,J=7.5Hz,2H),4.980(s,1H),4.935(d,J=5.4Hz,1H),4.806(t,J=5.6Hz,1H),4.292(m,J=5.2Hz,2H),3.643(s,3H),3.157(d,J=5.2Hz,2H),2.975(d,J=5.0Hz,2H),1.493(s,9H)。
元素分析:C27H31N3O6:理论值C 65.71,H 6.33,N 8.51;实测值C 65.67,H6.50,N 8.67。
2)制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-对羟基苄基乙酸甲酯
按照实施例1制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(1’-甲基丙基)乙酸甲酯的方法,由2.00g(4.06mmol)N-Boc-S-咔啉酰-L-酪氨酸甲酯制得0.76g(43%)目标化合物,为无色固体。
Mp 212-214℃;ESI-MS(m/e)434[M+H]+;1H-NMR(CDCl3,300MHz)δ=8.792(s,1H),7.405(t,J=7.2Hz,1H),7.272(t,J=7.2Hz,1H),7.257(t,J=7.5Hz,2H),7.149(d,J=7.5Hz,2H),7.056(d,J=7.2Hz,1H),7.017(d,J=7.2Hz,1H),5.638(s,1H),4.800(dd,J=4.8Hz,J=10.8Hz,1H),3.823(t,J=5.8Hz,1H),3.664(s,3H),3.661(d,J=5.8Hz,2H),3.237(d,J=4.8Hz,2H),2.890(d,J=5.8Hz,2H),1.433(t,3H),1.268(s,3H)。13C-NMR(DMSO-d6,300MHz)δ=171.003,170.534,155.987,136.034,132.573,130.710,128.271,126.688,120.540,118.414,117.466,115.035,110.897,105.804,78.021,56.807,56.321,52.217,41.255,30.681,24.841,23.355,17.989。
元素分析:C25H27N3O4:理论值C 69.27,H 6.28,N 9.69;实测值C 69.41,H 6.39,N 9.55。
实施例8 1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶
[3,4-h]并吲哚-2S-(吲哚-5基-亚甲基)乙酸甲酯的制备
1)制备N-Boc-S-咔啉酰-L-色氨酸甲酯
按照实施例1制备N-Boc-S-咔啉酰-L-异亮氨酸甲酯的方法,由2.00g(6.33mmol)盐酸L-色氨酸甲酯制得2.78g(85%)目标化合物,为无色固体。
Mp 161-163℃;ESI-MS 517[M+H]+;IR(KBr):3442,3204,3000,2948,2839,1729,1642,1604,1448,1391,1372,1062,900cm-1;1H NMR(BHSC-500,DMSO-d6):δ=9.872(s,1H),9.863(s,1H),8.095(s,1H),7.324(t,J=7.5Hz,1H),7.307(t,J=7.4Hz,1H),7.126(d,J=7.8Hz,1H),7.114(t,J=7.8Hz,1H),7.103(d,J=7.6Hz,1H),7.095(t,J=7.8Hz,1H),7.046(d,J=7.6Hz,1H),6.981(d,J=7.5Hz,1H),6.835(s,1H),4.94(d,J=5.4Hz,1H),4.762(t,J=5.3Hz,1H),4.291(d,J=5.2Hz,2H),3.644(s,3H),3.192(d,J=5.4Hz,2H),2.955(d,J=6.4Hz,2H),1.496(s,9H)。
元素分析:C29H32N4O5:理论值C 67.43,H 6.24,N 10.85;实测值C 67.55,H 6.34,N 10.72。
2)制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(吲哚-5基-亚甲基)乙酸甲酯
按照实施例1制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(1’-甲基丙基)乙酸甲酯的方法,由2.00g(3.88mmol)N-Boc-S-咔啉酰-L-色氨酸甲酯制得0.80g(45%)目标化合物,为无色固体。
Mp 204-206℃;ESI-MS(m/e)457[M+H]+;1H-NMR(CDCl3,300MHz)δ=8.862(s,1H),8.775(s,1H),7.567(t,J=7.8Hz,1H),7.415(t,J=7.8Hz,1H),7.325(t,J=7.8Hz,1H),7.268(t,J=7.8Hz,1H),7.262(d,J=7.8Hz,1H),7.247(t,J=7.8Hz,1H),7.022(d,J=7.8Hz,1H),7.010(d,J=7.8Hz,1H),6.779(s,1H),4.691(dd,J=4.5Hz,J=9.9Hz,1H),3.781(t,J=4.7Hz,1H),3.694(s,3H),3.480(m,J=4.0Hz,2H),3.199(d,J=4.5Hz,2H),2.911(d,J=4.7Hz,2H),1.500(s,3H),1.232(s,3H)。13C-NMR(DMSO-d6,300MHz)δ=170.855,170.641,136.034,135.985,132.532,132.383,127.595,126.663,124.389,120.894,120.556,118.447,118.002,117.482,111.400,110.864,110.551,105.787,77.972,56.882,56.654,52.217,41.223,27.690,24.434,23.750,23.363。
元素分析:C27H28N4O3:理论值C 71.03,H 6.18,N 12.27;实测值C 71.15,H 6.10,N 12.11。
实施例9 1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶
[3,4-b]并吲哚-2S-(咪唑-4基-亚甲基)乙酸甲酯的制备
1)制备N-Boc-S-咔啉酰-L-组氨酸甲酯
按照实施例1制备N-Boc-S-咔啉酰-L-异亮氨酸甲酯的方法,由1.36g(6.61
mmol)盐酸L-组氨酸甲酯制得2.36g(80%)目标化合物,为无色固体。
Mp 162-164℃;ESI-MS 454[M+H]+;IR(KBr):3442,3206,3004,2949,2839,1730,1643,1601,1454,1391,1368,1062,902cm-1;1H NMR(BHSC-500,DMSO-d6):δ=12.980(s,1H),9.962(s,1H),8.053(s,1H),7.475(s,1H),6.85(s,1H),7.362(t,J=7.4Hz,1H),7.206(t,J=7.7Hz,1H),7.164(d,J=7.7Hz,1H),6.985(t,J=7.4Hz,1H),4.937(t,J=5.3Hz,1H),4.835(t,J=5.4Hz,1H),4.266(d,J=5.2Hz,2H),3.645(s,3H),3.194(d,J=5.4Hz,2H),2.925(d,J=5.2Hz,2H),1.493(s,9H)。
元素分析:C24H29N5O5:理论值C 61.66,H 6.25,N 14.98;实测值C 61.52,H6.38,N 14.77。
2)制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(咪唑-4基-亚甲基)乙酸甲酯
按照实施例11,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(1’-甲基丙基)乙酸甲酯的方法,由2.00g(4.28mmol)N-Boc-S-咔啉酰-L-组氨酸甲酯制得0.61g(35%)目标化合物,为无色固体。
Mp 204-206℃;ESI-MS(m/e)408[M+H]+;1H-NMR(CDCl3,300MHz)δ=10.072(s,1H),8.885(s,1H),7.411(s,1H),7.265(t,J=7.3Hz,1H),7.184(d,J=7.3Hz,1H),7.025(d,J=7.3Hz,1H),7.009(d,J=7.3Hz,1H),6.820(s,1H),4.700(dd,J=4.3Hz,J=9.5Hz,1H),3.823(t,J=4.8Hz,1H),3.690(s,3H),3.482(m,J=4.3Hz,2H),3.193(d,J=4.3Hz,2H),2.905(d,J=4.8Hz,2H),1.442(s,3H),1.400(s,3H)。13C-NMR(DMSO-d6,300MHz)δ=171.119,170.992,136.440,136.228,135.175,134.864,132.007,123.393,121.800,120.759,120.204,112.920,111.432,70.978,59.889,51.648,50.971,45.202,27.698,29.430,23.758,23.665。
元素分析:C22H25N5O3:理论值C 64.85,H 6.18,N 17.19;实测值C 64.73,H 6.10,N 17.32。
实施例10 1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶
[3,4-h]并吲哚-2S-甲硫基乙酸甲酯的制备
1)制备N-Boc-S-咔啉酰-L-蛋氨酸甲酯
按照实施例1制备N-Boc-S-咔啉酰-L-异亮氨酸甲酯的方法,由1.32g(6.61mmol)盐酸L-蛋氨酸甲酯制得2.80g(96%)目标化合物,为无色固体。
Mp 159-161℃;ESI/MS 462[M+H]+;IR(KBr):3441,3203,3004,2953,2847,1732,1641,1603,1454,1390,1372,1061,900cm-1;1H NMR(BHSC-500,DMSO-d6):δ=10.041(s,1H),7.974(s,1H),7.322(t,J=7.5Hz,1H),7.223(t,J=7.8Hz,1H),6.990(d,J=7.8Hz,1H),6.814(d,J=7.5Hz,1H),4.865(t,J=5.3Hz,1H),4.453(t,J=5.5Hz,1H),4.286(d,J=5.1Hz,2H),3.685(s,3H),2.937(d,J=5.3Hz,2H),2.424(t,J=5.4Hz,2H),2.282(d,J=5.6Hz,2H),2.107(s,3H),1.445(s,9H)。
元素分析:C23H31N3O5S:理论值C 59.85,H 6.77,N 9.10.实测值C 59.67,H6.59,N 9.04。
2)制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-甲硫基乙酸甲酯
按照实施例1制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(1’-甲基丙基)乙酸甲酯的方法,由2.00g(4.34mmol)N-Boc-S-咔啉酰-L-蛋氨酸甲酯制得1.11g(64%)目标化合物,为无色固体。
Mp 190-191℃;ESI-MS(m/e)402[M+H]+;1H-NMR(CDCl3,300MHz)δ=7.997(s,1H),7.473(t,J=7.2Hz,1H),7.292(t,J=7.2Hz,1H),7.088(d,J=7.2Hz,1H),7.023(d,J=7.2Hz,1H),4.137(t,J=4.2Hz,1H),3.928(t,J=5.2Hz,1H),3.721(s,3H),3.480(dd,J=4.5Hz,J=10.8Hz,1H),3.139(dd,J=4.5Hz,,J=10.8Hz,1H),2.809(d,J=5.2Hz,2H),2.577(m,J=4.2Hz,2H),2.415(m,J=4.2Hz,2H),2.151(s,3H),1.479(s,3H),1.363(s,3H)。13C-NMR(DMSO-d6,300MHz)δ=171.804,170.913,136.249,131.148,127.134,121.637,119.535,118.085,110.766,108.005,78.442,57.294,52.629,52.514,41.726,31.481,28.663,24.806,23.528,22.951,15.097。
元素分析:C21H27N3O3S:理论值C 62.82,H 6.78,N 10.47;实测值C 62.95,H 6.90,N 10.63。
实施例11 1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶
[3,4-b]并吲哚-2S-甲氧羰甲基乙酸甲酯的制备
1)制备N-Boc-S-咔啉酰-L-天冬氨酸二甲酯
按照实施例1制备N-Boc-S-咔啉酰-L-异亮氨酸甲酯的方法作,由1.31g(6.61mmol)盐酸L-天冬氨酸二甲酯制得2.79g(96%)目标化合物,为无色固体。
Mp 158-160℃;ESI-MS 460[M+H]+;IR(KBr):3441,3210,3004,2955,2841,1732,1643,1604,1453,1390,1371,1061,903cm-1;1H NMR(BHSC-500,DMSO-d6):δ=10.050(s,1H),8.051(s,1H),7.373(t,J=7.4Hz,1H),7.252(t,J=7.4Hz,1H),7.006(d,J=7.6Hz,1H),6.954(d,J=7.4Hz,1H),4.926(d,J=5.5Hz,1H),4.773(t,J=5.5Hz,1H),4.242(d,J=5.6Hz,2H),3.625(s,3H),3.581(s,3H),2.917(d,J=5.2Hz,2H),2.855(d,J=5.4Hz,2H),1.494(s,9H)。
元素分析:C23H29N3O7:理论值C 60.12,H 6.36,N 9.14.实测值C 60.03,H6.49,N 8.99。
2)制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-甲氧羰甲基乙酸甲酯
按照实施例1制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(1’-甲基丙基)乙酸甲酯的方法,由2.00g(4.36mmol)N-Boc-S-咔啉酰-L-天冬氨酸二甲酯制得0.97g(56%)目标化合物,为无色固体。
Mp 234-236℃;ESI-MS(m/e)400[M+H]+;1H-NMR(CDCl3,300MHz)δ=8.782(s,1H),7.411(t,J=7.5Hz,1H),7.301(t,J=7.5Hz,1H),7.007(d,J=7.5Hz,1H),6.995(d,J=7.5Hz,1H),4.439(t,J=4.5Hz,1H),3.971(t,J=5.4Hz,1H),3.648(s,3H),3.639(s,3H),3.443(dd,J=4.2Hz,J=10.8Hz,1H),3.274(dd,J=4.2Hz,J=10.8Hz,1H),2.886(d,J=4.5Hz,2H),2.796(d,J=4.2Hz,2H),1.465(s,3H),1.377(s,3H).13C-NMR(DMSO-d6,300MHz)δ=171.020,170.979,169.866,135.911,134.762,132.424,121.631,120.606,118.463,113.515,110.914,71.054,56.511,52.637,51.747,50.074,41.223,34.407,24.583,23.501,23.280。
元素分析:C21H25N3O5:理论值C 63.14,H 6.31,N 10.52;实测值C 63.30,H 6.45,N 10.37。
实施例12 1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶
[3,4-b]并吲哚-2S-甲氧羰乙基乙酸甲酯的制备
1)制备N-Boc-S-咔啉酰-L-谷氨酸二甲酯
按照实施例1制备N-Boc-S-咔啉酰-L-异亮氨酸甲酯的方法作,由1.40g(6.61mmol)盐酸L-谷氨酸二甲酯制得2.93g(98%)目标化合物,为无色固体。
Mp 154-156℃;ESI-MS 474[M+H]+;IR(KBr):3441,3203,3000,2944,2831,1731,1645,1604,1455,1390,1372,1067,903cm-1;1H NMR(BHSC-500,DMSO-d6):δ=9.890(s,1H),8.044(s,1H),7.393(t,J=7.6Hz,1H),7.282(t,J=7.6Hz,1H),7.015(d,J=7.7Hz,1H),6.844(d,J=7.6Hz,1H),4.906(d,J=5.4Hz,1H),4.437(t,J=5.6Hz,1H),4.225(d,J=5.5Hz,2H),3.663(s,3H),3.647(s,3H),2.968(d,J=5.4Hz,2H),2.281(t,J=5.6Hz,2H),2.245(t,J=5.7Hz,2H),1.434(s,9H)。
元素分析:C24H31N3O7。理论值C 60.88,H 6.60,N 8.87;实测值C 60.73,H6.49,N 8.69。
2)制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-甲氧羰乙基乙酸甲酯
按照实施例1制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(1’-甲基丙基)乙酸甲酯的方法,由2.00g(4.23mmol)N-Boc-S-咔啉酰-L-谷氨酸二甲酯制得0.84g(48%)目标化合物,为无色固体。
Mp 234-236℃;ESI-MS(m/e)414[M+H]+;1H-NMR(CDCl3,300MHz)δ=8.775(s,1H),7.472(t,J=7.5Hz,1H),7.293(t,J=7.5Hz,1H),7.078(d,J=7.5Hz,1H),7.046(d,J=7.5Hz,1H),4.134(t,J=4.7Hz,1H),3.904(t,J=5.6Hz,1H),3.716(s,3H),3.677(s,3H),3.486(dd,J=4.2Hz,J=10.3Hz,1H),3.116(dd,J=4.2Hz,J=10.3Hz,1H),2.749(d,J=5.6Hz,2H),2.681(d,J=4.7Hz,2H),2.496(d,J=4.7Hz,2H),1.473(s,3H),1.367(s,3H)。13C-NMR(DMSO-d6,300MHz)δ=171.026,170.983,169.870,135.915,134.770,132.430,121.637,120.612,118.469,113.521,110.922,71.062,56.517,52.643,51.751,50.080,41.231,34.415,26.887,24.599,23.507,23.288。
元素分析:C22H27N3O5理论值C 63.91,H 6.58,N 10.16;实测值C 64.06,H 6.72,N 10.00。
实施例13 1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶
[3,4-b]并吲哚-2S-羟甲基乙酸甲酯的制备
1)制备N-Boc-S-咔啉酰-L-丝氨酸甲酯
按照实施例1制备N-Boc-S-咔啉酰-L-异亮氨酸甲酯的方法,由1.03g(6.61mmol)盐酸L-丝氨酸甲酯制得2.43g(92%)目标化合物,为无色固体。
Mp 139-141℃;ESI-MS 418[M+H]+.IR(KBr):3442,3200,3001,2952,2845,1730,1644,1606,1455,1392,1370,1067,900cm-1;1H NMR(BHSC-500,DMSO-d6):δ=9.950(s,1H),7.972(s,1H),7.291(t,J=7.6Hz,1H),7.224(t,J=7.9Hz,1H),6.995(d,J=7.9Hz,1H),6.830(t,J=7.6Hz,1H),4.872(d,J=5.4Hz,1H),4.526(t,J=5.6Hz,1H),4.197(d,J=5.2Hz,2H),4.133(d,J=5.6Hz,2H),3.634(s,3H),2.95(d,J=5.6Hz,1H),2.925(d,J=5.6Hz,1H),2.288(s,1H),1.454(s,9H)。
元素分析:C21H27N3O6:理论值C 60.42,H 6.52,N 10.07;实测值C 60.31,H6.36,N 10.24。
2)制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-羟甲基乙酸甲酯
按照实施例1制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(1’-甲基丙基)乙酸甲酯的方法,由2.00g(4.80mmol)N-Boc-S-咔啉酰-L-丝氨酸甲酯制得0.89g(52%)目标化合物,为无色固体。
Mp 196-197℃;ESI-MS(m/e)358[M+H]+;1H-NMR(CDCl3,300MHz)δ=8.857(s,1H),7.409(t,J=7.4Hz,1H),7.293(t,J=7.4Hz,1H),7.014(d,J=7.4Hz,1H),6.971(d,J=7.4Hz,1H),5.012(t,J=5.4Hz,1H),4.176(t,J=5.4Hz,2H),4.094(t,J=4.4Hz,1H),3.814(dd,J=4.2Hz,J=10.2Hz,1H),3.623(s,3H),3.440(dd,J=4.2Hz,J=10.2Hz,1H),2.879(d,J=4.4Hz,2H),2.453(s,1H),1.375(s,3H),1.307(s,3H)。13C-NMR(CDCl3,300MHz)δ=170.987,169.446,135.911,132.556,126.663,120.573,118.438,117.499,110.897,105.886,78.137,58.390,56.816,56.511,52.044,41.445,24.492,23.338,19.275。
元素分析:C19H23N3O4:理论值C 63.85,H 6.49,N 11.76;实测值C 62.95,H 6.60,N 11.59。
实施例14 1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶
[3,4-h]并吲哚-2S-(1’-羟乙基)乙酸甲酯的制备
1)制备N-Boc-S-咔啉酰-L-苏氨酸甲酯
按照实施例1制备N-Boc-S-咔啉酰-L-异亮氨酸甲酯的方法,由1.12g(6.61mmol)盐酸L-苏氨酸甲酯制得2.37g(87%)目标化合物,为无色固体。
Mp 140-142℃;ESI-MS 432[M+H]+;IR(KBr):3437,3200,3002,2951,2844,1735,1649,1600,1450,1392,1370,1065,901cm-1;1H NMR(BHSC-500,DMSO-d6):δ=9.981(s,1H),7.870(s,1H),7.343(t,J=7.4Hz,1H),7.254(t,J=7.6Hz,1H),6.952(d,J=7.6Hz,1H),6.724(d,J=7.4Hz,1H),4.870(t,J=5.4Hz,1H),4.673(m,J=5.6Hz,1H),4.485(t,J=5.6Hz,1H),3.991(m,J=5.2Hz,2H),3.653(s,3H),2.974(d,J=5.7Hz,2H),2.195(d,J=3.7Hz,1H),1.474(s,9H),1.19(d,J=5.6Hz,3H)。
元素分析:C22H29N3O6。理论值C 61.24,H 6.77,N 9.74。实测值C 61.40,H6.91,N 9.55。
2)制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(1’-羟乙基)乙酸甲酯
按照实施例1制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(1’-甲基丙基)乙酸甲酯的方法,由2.00g(4.64mmol)N-Boc-S-咔啉酰-L-苏氨酸甲酯制得0.72g(42%)目标化合物,为无色固体。
Mp 196-197℃;ESI-MS(m/e)372[M+H]+;1H-NMR(CDCl3,300MHz)δ=8.669(s,1H),7.403(t,J=7.5Hz,1H),7.290(t,J=7.5Hz,1H),7.010(d,J=7.5Hz,1H),6.975(d,J=7.5Hz,1H),5.010(t,J=5.5Hz,1H),4.173(m,J=5.6Hz,1H),4.097(d,J=4.6Hz,1H),3.811(dd,1H,J=4.3Hz,J=10.1Hz,1H),3.620(s,3H),3.435(dd,1H,J=4.3Hz,J=10.1Hz,1H),2.879(d,1H,J=5.5Hz,2H),2.453(s,1H),1.375(s,3H),1.307(s,3H),1.286(d,J=4.6Hz,3H)。13C-NMR(CDCl3,300MHz)δ=171.544,170.135,136.037,132.598,126.685,120.623,118.608,117.637,111.229,106.104,78.715,65.466,58.412,57.159,56.573,52.119,41.607,24.513,23.357,19.286。
元素分析:20H25N3O4。理论值C 64.67,H 6.78,N 11.31;实测值C 64.84,H 6.90,N 11.20。
实施例15 1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶
[3,4-h]并吲哚-2S-(3’-胍基丙基)乙酸甲酯的制备
1)制备N-Boc-S-咔啉酰-L-精氨酸甲酯
按照实施例1制备N-Boc-S-咔啉酰-L-异亮氨酸甲酯的方法,由1.48g(6.61mmol)盐酸L-精氨酸甲酯制得2.43g(79%)目标化合物,为无色固体。
Mp 168-170℃;ESI-MS 487[M+H]+;IR(KBr):3443,3207,3001,2948,2842,1731,1645,1602,1453,1390,1372,1061,904cm-1;1H NMR(BHSC-500,DMSO-d6):δ=10.221(s,1H),8.452(s,2H),8.270(s,1H),8.224(s,1H),8.017(s,1H),7.293(t,J=7.6Hz,1H),7.185(t,J=7.7Hz,1H),7.044(d,J=7.7Hz,1H),6.961(d,J=7.6Hz,1H),4.905(d,J=5.3Hz,1H),4.426(t,J=4.2Hz,1H),4.251(d,J=5.0Hz,2H),3.655(s,3H),2.947(d,J=4.1Hz,2H),2.680(t,J=5.4Hz,2H),1.925(m,J=5.5Hz,2H),1.583(m,J=5.5Hz,2H),1.576(s,9H)。
元素分析:C24H34N6O5。理论值C 59.24,H 7.04,N 17.27。实测值C 59.38,H7.19,N 17.31。
2)制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(3’-胍基丙基)乙酸甲酯
按照实施例1制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(1’-甲基丙基)乙酸甲酯的方法,由2.00g(4.12mmol)N-Boc-S-咔啉酰-L-精氨酸甲酯制得0.79g(45%)目标化合物,为无色固体。Mp196-197℃、ESI-MS(m/e)427[M+H]+;1H-NMR(CDCl3,300MHz)δ=8.787(s,2H),8.722(s,1H),8.224(s,1H),7.360(t,J=7.5Hz,1H),7.279(t,J=7.5Hz,1H),7.003(d,J=7.5Hz,1H),6.957(d,J=7.5Hz,1H),6.504(s,1H),4.661(t,J=5.6Hz,1H),4.018(t,J=4.8Hz,1H),3.815(dd,J=4.2Hz,J=10.3Hz,1H),3.628(s,3H),3.439(dd,J=4.2Hz,J=10.3Hz,1H),2.863(d,J=4.8Hz,2H),2.589(t,J=4.6Hz,2H),1.900(m,J=4.6Hz,2H),1.574(m,J=4.6Hz,2H),1.376(s,3H),1.313(s,3H)。13C-NMR(CDCl3,300MHz)δ=173.402,173.337,172.194,135.748,135.100,132.499,122.600,120.679,119.643,113.555,111.717,71.333,60.706,51.903,50.417,47.007,40.665,27.334,27.008,25.884,24.510,23.362。
元素分析:C22H30N6O3。理论值C 61.95,H 7.09,N 19.70;实测值C 62.10,H 6.98,N 19.56。
实施例16 1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶
[3,4-b]并吲哚-2S-氨羰甲基乙酯甲酯的制备
1)制备N-Boc-S-咔啉酰-L-天冬酰胺甲酯
按照实施例1制备N-Boc-S-咔啉酰-L-异亮氨酸甲酯的方法,由1.21g(6.61mmol)盐酸L-天冬酰胺甲酯制得2.13g(76%)目标化合物,为无色固体。
Mp 127-129℃;ESI-MS:444[M+H]+.IR(KBr):3440,3203,3005,2942,2833,1735,1642,1604,1453,1394,1372,1067,903cm-1;1H NMR(BHSC-500,DMSO-d6):δ=8.871(s,1H),8.012(s,1H),7.296(t,J=7.4Hz,1H),7.217(t,J=7.4Hz,1H),7.008(d,J=7.4Hz,1H),6.827(d,J=7.4Hz,1H),6.053(s,2H),4.927(d,J=5.5Hz,1H),4.422(t,J=5.5Hz,1H),4.246(d,J=5.6Hz,2H),3.674(s,3H),2.942(d,J=5.4Hz,2H),2.688(t,J=5.5Hz,2H),1.466(s,9H)。[α]D 20=-51°(c=0.38,CHCl3:CH3OH,1:1,v/v)。
元素分析:C22H28N4O6。理论值C 59.45,H 6.35,N 12.60;实测值C 59.61,H6.50,N 12.47。
2)制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-氨羰甲基乙酸甲酯
按照实施例1制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(1’-甲基丙基)乙酸甲酯的方法,由2.00g(4.50mmol)N-Boc-S-咔啉酰-L-天冬酰胺甲酯制得0.69g(40%)目标化合物,为无色固体。
Mp 196-197℃;ESI-MS(m/e)385[M+H]+;1H-NMR(CDCl3,300MHz)δ=8.770(s,1H),7.413(t,J=7.4Hz,1H),7.322(t,J=7.4Hz,1H),7.012(d,J=7.4Hz,1H),6.998(d,J=7.4Hz,1H),6.217(s,2H),4.559(t,J=4.7Hz,1H),3.956(t,J=5.6Hz,1H),3.667(s,3H),3.450(dd,J=4.0Hz,J=10.1Hz,1H),3.277(dd,J=4.0Hz,J=10.1Hz,1H),2.883(d,J=5.6Hz,2H),2.790(d,J=4.7Hz,2H),1.460(s,3H),1.375(s,3H)。13C-NMR(DMSO-d6,300MHz)δ=177.111,172.968,171.875,135.937,134.776,132.431,121.650,120.614,118.469,113.522,111.033,71.107,56.583,51.145,46.220,45.588,34.996,24.617,23.511,23.289。
元素分析:C20H24N4O4。理论值:C 62.49,H 6.29,N 14.57;实测值C 62.63,H 6.41,N 14.40。
实施例17 1,2,3,5,11,11a-六氢-33-二甲基-1-氧代-6H-咪唑[3’,4’:12]并吡啶
[3,4-b]并吲哚-2S-氨羰乙基乙酸甲酯的制备
1)制备N-Boc-S-咔啉酰-L-谷氨酰胺甲酯
按照实施例1制备N-Boc-S-咔啉酰-L-异亮氨酸甲酯的方法,由1.30g(6.61mmol)盐酸L-谷氨酰胺甲酯制得2.38g(82%)目标化合物,为无色固体。
Mp 122-124℃;ESI-MS(m/e)459[M+H]+.IR(KBr):3445,3200,3001,2940,2835,1733,1640,1602,1452,1391,1370,1065,900cm-1;1H NMR(BHSC-500,DMSO-d6):δ=9.916(s,1H),8.007(s,1H),7.292(t,J=7.4Hz,1H),7.203(t,J=7.4Hz,1H),7.005(d,J=7.4Hz,1H),6.806(d,J=7.4Hz,1H),6.054(s,2H),4.925(d,J=5.5Hz,1H),4.413(t,J=5.5Hz,1H),4.245(d,J=5.6Hz,2H),3.677(s,3H),2.945(d,J=5.4Hz,2H),2.186(t,J=5.5Hz,2H),2.140(t,J=5.5Hz,2H),1.464(s,9H)。[α]D 20=-56°(c=0.38,CHCl3:CH3OH,1:1,v/v)。
元素分析:C23H30N4O6。理论值:C 60.25,H 6.59,N 12.22。实测值:C 60.73,H 6.49,N 8.69。
2)制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-氨羰乙基乙酸甲酯
按照实施例1制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2S-(1’-甲基丙基)乙酸甲酯的方法,由2.00g(4.37mmol)N-Boc-S-咔啉酰-L-谷氨酰胺甲酯制得0.78g(45%)目标化合物,为无色固体。
Mp 234-236℃;ESI-MS(m/e)399[M+H]+;1H-NMR(CDCl3,300MHz)δ=8.771(s,1H),7.468(t,J=7.5Hz,1H),7.290(t,J=7.5Hz,1H),7.072(d,J=7.5Hz,1H),7.041(d,J=7.5Hz,1H),6.231(s,2H),4.132(t,J=4.8Hz,1H),3.913(t,J=5.5Hz,1H),3.681(s,3H),3.482(dd,J=4.4Hz,J=10.1Hz,1H),3.120(dd,J=4.4Hz,J=10.1Hz,1H),2.745(d,J=5.5Hz,2H),2.683(m,J=4.8Hz,2H),2.492(t,J=4.8Hz,2H),1.475(s,3H),1.363(s,3H)。13C-NMR(DMSO-d6,300MHz)δ=176.021,172.987,170.872,135.933,134.776,132.438,121.641,120.636,118.503,113.765,111.205,71.154,56.549,52.687,50.682,44.898,31.433,25.881,24.908,23.514,23.296。
元素分析:C21H26N4O4。理论值C 63.30,H 6.58,N 14.06;实测值C 63.45,H 6.70,N 14.22。
试验例
本发明化合物的舒张血管活性测定试验
体重250-300g雄性Wistar大鼠,术前禁食12小时,自由饮水,颈椎脱位致死,开胸迅速摘取胸主动脉,剥离附着的结缔组织,将血管剪成3-5mm长的动脉环,置于15ml灌流浴槽内。浴槽盛有15ml Krebs-Henseleit(KH)液,37℃恒温,通以95%O2-5%CO2气体。固定动脉环的挂钩连接张力换能器,在二道记录仪上描记血管舒缩曲线,纸速为1mm/min。调整静止张力为1.0g,平衡30min后给予NE(15μL,终浓度为0.1μM)使动脉收缩以起预激作用。洗去NE,平衡30min后给予NE(15μL,终浓度为0.1μM),待收缩张力持续稳定于平台水平后,空白对照组加入无水乙醇15μl,测试组分别加入本发明实施例1-17的化合物与15μl无水乙醇的溶液(终浓度50μM)。本发明实施例化合物的血管舒张能力用降低NE(终浓度为0.1μM)最大收缩张力的百分比表示(n=6,已扣除溶剂因素),结果见下表1。
表1 50μM的实施例化合物拮抗去甲肾上腺素收缩血管的作用(x±SD)
类似地,对于不同浓度的实施例化合物进行上述测定试验,结果见下表2(n=6)。
表2 不同浓度实施例1、4和8的化合物拮抗去甲肾上腺素收缩血管的作用(x±SD)
Claims (9)
1、通式(I)的化合物,或其药物可接受的盐
其中,R为-CH(CH3)CH2CH3、-CH(CH3)2、-CH2CH(CH3)2、-CH3、H、-CH2C6H5、-CH2C6H4-OH-p、吲哚-5-基亚甲基、咪唑-4-基亚甲基、-CH2CH2SCH3、-CH2CO2CH3、-CH2CH2CO2CH3、-CH2OH、-CH(OH)CH3、-CH2CH2CH2NHC(NH)NH2、-CH2CONH2或-CH2CH2CONH2。
2、制备权利要求1中所述通式(I)化合物的方法,包括:通过3S-N-Boc-四氢-β-咔啉-3-羧酸与氨基酸甲酯进行偶联得到3S-N-Boc-四氢-β-咔啉-3-酰基氨基酸甲酯,然后S-N-Boc-四氢-β-咔啉-3-酰基氨基酸甲酯脱去Boc保护基后再与丙酮环合即得到通式(I)的化合物。
3、如权利要求2所述的方法,其中所述缩合反应可以在二环己基羰二亚胺(DCC)、N-羟基苯并三唑(HOBt)和N甲基吗啉(NMM)存在下进行。
4、如权利要求2或3所述的方法,其中脱去Boc保护基氯化氢/乙酸乙酯溶液进行,所述与丙酮环合在PH约为9时进行。
5、如权利要求2-4任一项所述的方法,其中作为原料的3S-N-Boc-四氢-β-咔啉-3-羧酸化合物通过在硫酸催化下L-色氨酸与甲醛缩合制备3S-四氢-β-咔啉-3-羧酸、然后3S-四氢-β-咔啉-3-羧酸再与Boc2O反应来制得。
6、如权利要求2-5任一项所述的方法,该方法包括:
(1)在硫酸催化下L-色氨酸与甲醛缩合制备3S-四氢-β-咔啉-3-羧酸;
(2)3S-四氢-β-咔啉-3-羧酸与Boc2O反应制备3S-N-Boc-四氢-β-咔啉-3-羧酸;
(3)3S-N-Boc-四氢-β-咔啉-3-羧酸与氨基酸甲酯偶联制备3S-N-Boc-四氢-β-咔啉-3-酰基氨基酸甲酯;
(4)用氯化氢/乙酸乙酯溶液(4N)脱3S-N-Boc-四氢-β-咔啉-3-酰基氨基酸甲酯的Boc基,制备3S-四氢-β-咔啉-3-酰基氨基酸甲酯;
(5)在大约pH9下将3S-四氢-β-咔啉-3-酰基氨基酸甲酯与丙酮环合制备1,2,3,5,11,11a-六氢-3,3-二甲基-1-氧代-6H-咪唑[3’,4’:1,2]并吡啶[3,4-b]并吲哚-2-取代乙酸甲酯。
7、权利要求1的化合物或其药物可接受的盐在制备用来舒张血管的药物中的应用。
8、一种药物组合物,包括权利要求1的化合物或其药物可接受的盐作为活性成分,还包括药物可接受的载体和/或赋形剂。
9、权利要求8所述的药物组合物在制备用来舒张血管的药物中的应用。
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