CN101200493B - (3s)-n-(l-氨基酰)-1,2,3,4-四氢异喹啉-3-羧酸、其制备方法及应用 - Google Patents
(3s)-n-(l-氨基酰)-1,2,3,4-四氢异喹啉-3-羧酸、其制备方法及应用 Download PDFInfo
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- CN101200493B CN101200493B CN2006101649787A CN200610164978A CN101200493B CN 101200493 B CN101200493 B CN 101200493B CN 2006101649787 A CN2006101649787 A CN 2006101649787A CN 200610164978 A CN200610164978 A CN 200610164978A CN 101200493 B CN101200493 B CN 101200493B
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- tetrahydroisoquinoline
- boc
- carboxylic acid
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- cdcl
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Abstract
本发明公开了具有抗血栓活性的通式(I)化合物,本发明还公开了该化合物的制备方法及其作为抗血栓剂的应用。本发明在(3S)-1,2,3,4-四氢异喹啉-3-羧酸的2位N上引入氨基酸残基,制备得到本发明通式(I)化合物。本发明化合物不仅具有较好的抗血栓活性,相对于用L-氨基酸修饰(3S)-1,2,3,4-四氢-β-咔啉-3-羧酸中所获得的一类抗血栓剂,其结构更为简单,其制备成本因此更低。此外,本发明通式(I)化合物不论是在极性溶剂抑或非极性溶剂中均有良好的溶解度,生物利用度高。
Description
技术领域
本发明涉及杂环化合物,尤其涉及(3S)-N-(L-氨基酰)-1,2,3,4-四氢异喹啉-3-羧酸、其制备方法及作为抗血栓剂的应用,属于生物医药领域。
背景技术
血管栓塞性疾病对心脑血管疾病的高死亡率负最重要的责任。血栓形成是血管栓塞性疾病发病的最重要的病因。寻找抗血栓药物是新药研究的热点之一。本发明人注意到,1,2,3,4-四氢-β-咔啉-3-S-羧酸是中药薤白中的一种成分,具有抗血小板聚集活性(姚新生等,中国药物化学杂志,1995,5,134)。针对1,2,3,4-四氢-β-咔啉-3-S-羧酸在极性溶剂和非极性溶剂中溶解度都不好带来的低生物利用度,本发明人通过在(3S)-1,2,3,4-四氢-β-咔啉-3-羧酸中引入L-氨基酸,获得了一类抗血栓剂,所获得的上述抗血栓剂虽然具有良好的抗血栓活性,但是由于(3S)-1,2,3,4-四氢-β-咔啉-3-羧酸结构复杂的缘故,以此为原料所制备的抗血栓剂也同样存在着结构复杂,由此带来的问题是制备工艺复杂,相应的必然会提高生产成本。如果从(3S)-1,2,3,4-四氢-β-咔啉-3-羧酸结构中去除吡咯环,一是由此得到的(3S)-1,2,3,4-四氢异喹啉-3-羧酸是否还具有抗血栓活性,显然是无法预测的,二是(3S)-1,2,3,4-四氢异喹啉-3-羧酸无论是在极性溶剂还是在非极性溶剂中,其溶解度都不好,以至生物利用度不高。
发明内容
本发明首先所要解决的技术问题是克服现有技术的不足,提供一类新的具有抗血栓活性的化合物,该化合物的结构相对更为简单,在极性溶剂和非极性溶剂中均具有良好的溶解度。
本发明首先所要解决的技术问题是通过以下技术方案来实现的:
其中,AA选自L-丙氨酰基、甘氨酰基、L-缬氨酰基、L-苯丙氨酰基、L-亮氨酰基、L-异亮氨酰基、L-色氨酰基、L-丝氨酰基、L-苏氨酰基、L-酪氨酰基、L-脯氨酰基、L-蛋氨酰基、L-天冬酰胺酰基、L-谷氨酰胺酰基、L-组氨酰基、L-赖氨酰基、L-天冬氨酰基、L-谷氨酰基或L-精氨酰基。
本发明还提供了通式I化合物的两种中间体化合物(通式II-III):
其中,AA选自L-丙氨酰基、甘氨酰基、L-缬氨酰基、L-苯丙氨酰基、L-亮氨酰基、L-异亮氨酰基、L-色氨酰基、L-侧链OBZl保护丝氨酰基、L-苏氨酰基、L-侧链OBzl保护酪氨酰基、L-脯氨酰基、L-蛋氨酰基、L-天冬酰胺酰基、L-谷氨酰胺酰基、L-组氨酰基、L-侧链Boc保护赖氨酰基、L-侧链Bzl保护天冬氨酰基、L-侧链Bzl保护谷氨酰基或L-侧链NO2保护精氨酰基。
其中,AA选自L-丙氨酰基、甘氨酰基、L-缬氨酰基、L-苯丙氨酰基、L-亮氨酰基、L-异亮氨酰基、L-色氨酰基、L-侧链OBzl保护丝氨酰基、L-苏氨酰基、L-酪氨酰基、L-脯氨酰基、L-蛋氨酰基、L-天冬酰胺酰基、L-谷氨酰胺酰基、L-组氨酰基、L-侧链Boc保护赖氨酰基、L-天冬氨酰基、L-谷氨酰基或L-侧链NO2保护精氨酰基。
本发明采用L-氨基酸修饰(3S)-1,2,3,4-四氢异喹啉-3-羧酸制备得到一系列新的(3S)-N-(L-氨基酰)-1,2,3,4-四氢异喹啉-3-羧酸[通式(I)化合物],本发明通式(I)化合物不仅具有较好的抗血栓活性,相对于用L-氨基酸修饰(3S)-1,2,3,4-四氢-β-咔啉-3-羧酸中所获得的一类抗血栓剂,其结构更为简单。此外,本发明通式(I)化合物不论是在极性溶剂抑或非极性溶剂中均有良好的溶解度,生物利用度高。
本发明所要解决的另一个技术问题是提供一种制备通式(I)化合物的方 法。
本发明所要解决的另一个技术问题是通过以下技术方案来实现的:
将L-氨基酸按照本领域常规方法引入到(3S)-N-Boc-1,2,3,4-四氢异喹啉-3-羧酸的2位N上,水解并脱去保护基后,即得。
优选的,一种制备通式(I)化合物的方法,包括:
1.按照现有技术方法制备(3S)-1,2,3,4-四氢异喹啉-3-羧酸;
2.在氯化亚砜和甲醇存在下将(3S)-1,2,3,4-四氢异喹啉-3-羧酸转化为(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯;
3.在二环己基碳二亚胺(DCC)和N-甲基吗啉存在下将(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯与Boc-L-氨基酸偶联制备(3S)-N-(Boc-L-氨基酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯;
4.在碱水溶液中将(3S)-N-(Boc-L-氨基酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯水解制备(3S)-N-(Boc-L-氨基酰)-1,2,3,4-四氢异喹啉-3-羧酸;
5.在氯化氢-乙酸乙酯溶液中将(3S)-N-(Boc-L-氨基酰)-1,2,3,4-四氢异喹啉-3-羧酸脱Boc制备(3S)-N-(L-氨基酰)-1,2,3,4-四氢异喹啉-3-羧酸;
其中,步骤1中(3S)-1,2,3,4-四氢异喹啉-3-羧酸的制备方法可参考以下方法(在浓盐酸存在下苯丙氨酸与甲醛进行Pictet-Spengler缩合制备(3S)-1,2,3,4-四氢异喹啉-3-羧酸。
步骤4中所述的碱可以是NaOH、KOH等,优选为NaOH,更优选为浓度为2N的NaOH。
步骤5中所述的氯化氢-乙酸乙酯溶液优选为浓度为6N的氯化氢-乙酸乙酯溶液。
动物抗血栓模型试验证实,本发明通式(I)化合物具有良好的溶血栓活性,可作为抗血栓剂应用。
为了进一步阐述本发明,下面给出一系列实施例。这些实施例完全是例证性的,它们仅用来对本发明进行具体描述,不应当理解为对本发明的限制。
本发明中所出现的术语或缩略语的说明:
THF 四氢呋喃
DCC 二环己基碳二亚胺
DCU 二环己基脲
OBzl 苄氧基
Boc 叔丁氧羰基
HOBt N-羟基苯并三唑
TLC 薄层层析
DMF 二甲基甲酰胺
NMM N-甲基吗啉
具体实施方式
I)甲醛和浓盐酸;II)氯化亚砜和甲醇;III)Boc-AA-OH、DCC和NMM;IV)2NNaOH水溶液;V)6N氯化氢-乙酸乙酯溶液.其中,在3a-s中,AA选自L-丙氨酰基、甘氨酰基、L-缬氨酰基、L-苯丙氨酰基、L-亮氨酰基、L-异亮氨酰基、L-色氨酰基、L-丝氨酰基、L-苏氨酰基、L-酪氨酰基、L-脯氨酰基、L-蛋氨酰基、L-天冬酰胺酰基、L-谷氨酰胺酰基、L-组氨酰基、L-赖氨酰基、L-天冬氨酰基、L-谷氨酰基或L-精氨酰基;在1a-s中,AA选自L-丙氨酰基、甘氨酰基、L-缬氨酰基、L-苯丙氨酰基、L-亮氨酰基、L-异亮氨酰基、L-色氨酰基、L-侧链OBZl保护丝氨酰基、L-苏氨酰基、L-侧链OBzl保护酪氨酰基、L-脯氨酰基、L-蛋氨酰基、L-天冬酰胺酰基、L-谷氨酰胺酰基、L-组氨酰基、L-侧链Boc保护赖氨酰基、L-侧链Bzl保护天冬氨酰基、L-侧链Bzl保护谷氨酰基或L-侧链NO2保护精氨酰基;在2a-s中,AA选自L-丙氨酰基、甘氨酰基、L-缬氨酰基、L-苯丙氨酰基、L-亮氨酰基、L-异亮氨酰基、L-色氨酰基、L-侧链OBzl保护丝氨酰基、L-苏氨酰基、L-酪氨酰基、L-脯氨酰基、L-蛋氨酰基、L-天冬酰胺酰基、L-谷氨酰胺酰基、L-组氨酰基、L-侧链Boc保护赖氨酰基、L-天冬氨酰基、L-谷氨酰基或L-侧链NO2保护精氨酰基。
为了进一步阐述本发明,下面给出一系列实施例。这些实施例完全是例证性的,它们仅用来对本发明进行具体描述,不应当理解为对本发明的限制。
实施例1制备(3S)-1,2,3,4-四氢异喹啉-3-羧酸
往5.0g(0.03mmol)L-苯丙氨酸中先逐滴加入27ml甲醛,再逐滴加入45ml浓盐酸。得到的混悬液油浴加热至80-90℃搅拌10h,TLC(CCl3:CH3OH=10:1)显示苯丙氨酸消失。反应混合物冷却至室温,过滤。滤餅先用水洗(30ml×3),再用丙酮洗(30ml×3),得到4.5g(83.9%)标题化合物,为无色固体。Mp.302-303;ESI-MS(m/e)178[M+H]+;1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),7.0(m,4H),3.80(m,3H),3.03(d.1H),2.78(d,1H),2.0(s,1H); 13C-NMR(CDCl3-d)δ/ppm=174.9,136.2,134.2,127.2,126.0,57.6,47.4,29.4.
实施例2制备(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯
冰盐浴下往20ml甲醇中逐滴加入5.2ml氯化亚砜,滴毕后搅拌10min。之后,加入4.27g(20mmol)(3S)-1,2,3,4-四氢异喹啉-3-羧酸。反应混合物室温搅拌100h,TLC(CCl3:CH3OH=5:1)显示(3S)-1,2,3,4-四氢异喹啉-3-羧酸消失。反应混合物减压浓缩。残留物用20ml甲醇溶解,再减压浓缩。该操作反复3次。残留物用20ml乙醚溶解,再减压浓缩。该操作反复3次。残留物用甲醇/乙醚结晶,得到4.2g(92%)标题化合物,为无色固体。ESI-MS(m/e)192[M+H]+;1HNMR(CDCl3-d)δ/ppm=7.0(m,4H),3.80(m,3H),3.67(s,3H),3.13(d.1H),2.78(d,1H),2.0(s,1H);13C-NMR(CDCl3-d)δ/ppm=174.9,136.2,134.2,127.2,126.0,57.6,47.4,29.4。
实施例3制备(3S)-N-(Boc-L-丙氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯(1a)将0.832g(4.4mmol)Boc-Ala-OH溶于10ml四氢呋喃(THF)。冰浴下往得到的溶液中加入0.594g(4.4mmol)N-羟基苯并三唑(HOBt)。搅拌。将0.91g(4.0 mmol)(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯先与5ml THF混合,再用三乙胺调节pH 8-9,搅拌30min后先与刚刚得到的Boc-Ala-OH溶液在冰浴下混合,再加入1.071g(5.2mmol)二环己基碳二亚胺(DCC)。反应混合物冰浴搅拌2h,室温搅拌12h。TLC(乙酸乙酯∶石油醚=1∶2)显示(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯消失。滤除二环己基脲(DCU),滤液减亚浓缩至干。残留物用50ml乙酸乙酯溶解,乙酸乙酯溶液用饱和NaHCO3水溶液洗三次,用5%KHSO4水溶液洗三次,用饱和NaCl水溶液洗三次。乙酸乙酯溶液用无水Na2SO4干燥过夜。滤除Na2SO4,滤液减亚浓缩至干,得到1.0g(70%)标题化合物,为糖浆状。ESI-MS(m/e)363[M+H]+;1HNMR(CDCl3-d)δ/ppm=8.0(d,1H),7.25(m,4H),4.83(d,1H),4.68(m,1H),4.55(d,1H),4.49(d,1H),3.63(s,3H),3.30(d,1H),3.10(d,1H),1.46(d,3H),1.41(s,9H);13C-NMR(CDCl3-d)δ/ppm=171.6,172.9,155.1,132.1,131.7,127.2,80.8,55.8,52.2,46.9,44.6,28.4,27.0,19.0。
实施例4 制备(3S)-N-(Boc-甘氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯(1b)
按照实施例3的操作,从0.77g(4.4mmol)Boc-Gly-OH制得1.20g(72%)标题化合物,为糖浆状。ESI-MS(m/e)349[M+H]+;1NMR(CDCl3-d)δ/ppm=8.0(d,1H),7.22(m,4H),4.80(d,1H),4.51(m,2H),3.85(d,2H),3.63(s,3H),3.25(m,2H),1.41(s,9H);13C-NMR(CDCl3-d)δ/ppm=171.6,168.6,155.8,131.9,130.9,128.4,127.2,126.6,80.8,55.8,52.0,44.6,43.0,28.4,27.0。
实施例5 制备(3S)-N-(Boc-L-缬氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯(1c)
按照实施例3的操作,从0.7161g(3.3mmol)Boc-Val-OH和0.6825g(3.0mmol)(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得0.988g(85%)标题化合物,为糖浆状。ESI-MS(m/e)391[M+H]+;1HNMR(CDCl3-d)δ/ppm=8.0(d,1H),7.22(m,4H),4.80(d,1H),4.61(d,1H),4.51(m,2H),4.24(m,1H),3.63(s,3H),3.25(m,2H),2.0(s,1H),1.41(s,9H),1.21(d,3H);13C-NMR(CDCl3-d)δ/ppm=171.6,168.6,155.8,135.9,133.9,128.4,127.2,126.6,80.8,67.8,58.4,55.8,52.0,44.6,28.4,27.0,18.9。
实施例6制备(3S)N-(Boc-L-苯丙氨酰)-1,2,3,4-四氢异喹啉-3-S-羧酸甲酯(1d)按照实施例3的操作,从0.8745g(3.3mmol)Boc-Phe-OH和0.6825g(3.0mmol)(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得1.10g(87%)标题化合物,为糖浆状。ESI-MS(m/e)439[M+H]+;1HNMR(CDCl3-d)δ/ppm=8.0(d,1H),7.22(m,9H),4.92(d,1H),4.80(d,1H),4.51(d,1H),4.41(d,1H),3.63(s,3H),3.10(m,4H),1.41(s,9H);13C-NMR(CDCl3-d)δ/ppm=171.6,170.1,155.8,139.5,135.9,134.2,128.4,127.2,126.6,79.5,55.8,52.0,44.6,37.8,28.4,27.0。
实施例7制备(3S)N-(Boc-L-亮氨酰)-1,2,3,4-四氢异喹啉-3-S-羧酸甲酯(1e)
按照实施例3的操作,从0.7623g(3.3mmol)Boc-Leu-OH和0.6825g(3.0mmol)(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得1.08g(89%)标题化合物,为糖浆状。ESI-MS(m/e)405[M+H]+;1HNMR(CDCl3-d)δ/ppm=8.0(d,1H),7.22(m,4H),4.80(d,1H),4.51(m,3H),3.63(s,3H),3.10(m,2H),1.78(m,3H),1.41(s,9H),1.01(d,6H);13C-NMR(CDCl3-d)δ/ppm=171.6,170.1,155.8,135.9,134.2,128.4,127.2,126.6,79.5,55.8,52.0,50.7,44.6,41.6,28.4,27.0,22.3。
实施例8制备(3S)N-(Boc-L-异亮氨酰)-1,2,3,4-四氢异喹啉-3-S-羧酸甲酯(1f)的制备
按照实施例3的操作,从0.7623g(3.3mmol)Boc-Ile-OH和0.6825g(3.0mmol)(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得1.08(89%)标题化合物,为糖浆状。ESI-MS(m/e)405[M+H]+;1HNMR(CDCl3-d)δ/ppm=8.0(d,1H),7.22(m,4H),4.80(d,1H),4.51(m,3H),3.63(s,3H),3.10(m,2H),2.5(m,1H),1.41(s,9H),1.29(m,2H),1.06(d,3H),0.96(d,3H);13C-NMR(CDCl3-d)δ/ppm=171.6,170.1,155.8,135.9,134.2,128.4,127.2,126.6,79.5,55.8,52.0,44.6,28.4,27.0,24.3,14.6,10.9。
实施例9制备(3S)-N-(Boc-L-色氨酰)-1,2,3,4-四氢异喹啉-3-S-羧酸甲酯(1g)
按照实施例3的操作,从1.003g(3.3mmol)Boc-Trp-OH和0.6825g(3.0mmol) (3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得1.210g(84%)标题化合物,为糖浆状。ESI-MS(m/e)478[M+H]+;1HNMR(CDCl3-d)δ/ppm=10.1(s,1H),8.0(d,1H),7.18(d,4H),7.01(m,4H),6.80(s,1H),4.90(d,1H),4.81(d,1H),4.51(m,2H),3.63(s,3H), 3.10(m,4H),1.41(s,9H);13C-NMR(CDCl3-d)δ/ppm=171.6,170.1,155.8,135.9,134.2,128.4,127.2,126.6,122.9,119.0,110.9,79.5,55.8,52.0,31.5,44.6,28.4,27.0。
实施例10制备(3S)-N-(Boc-L-侧链OBZ1保护丝氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯(1h)
按照实施例3的操作,从1.298g(4.4mmol)Boc-Ser(Bz1)-OH和0.91g(4.0mmol)(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得1.5g(80%)标题化合物,为糖浆状。ESI-MS(m/e)469[M+H]+;1HNMR(CDCl3-d)δ/ppm=8.0(d,1H),7.19(d,5H),7.01(m,4H),4.83(m,2H),4.63(s,2H),4.51(m,2H),3.86(m,2H),3.63(s,3H),3.29(d,1H),3.05(d,1H),1.41(s,9H);13C-NMR(CDCl3-d)δ/ppm=171.6,170.1,155.8,137.2,135.9,134.2,128.4,127.2,125.6,79.5,74.3,70.2,55.8,52.0,50.7,44.6,28.4,27.0。
实施例11制备(3S)-N-(Boc-L-苏氨酰)-1,2,3,4-四氢异喹啉-3-S-羧酸甲酯(1i)
按照实施例3的操作,从0.964g(4.4mmol)Boc-Thr-OH和0.91g(4.0mmol)(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得1.44g(89%)标题化合物,为糖浆状。ESI-MS(m/e)393[M+1]+;1HNMR(CDCl3-d)δ/ppm=8.0(d,1H),7.02(m,4H),4.80(t,1H),4.61(d,1H),4.46(m,2H),4.24(m,1H),3.63(s,3H),3.29(d,1H),3.05(d,1H),2.0(s,1H),1.48(s,9H),1.21(d,3H);13C-NMR(CDC13-d)δ/ppm=171.6,170.1,155.8,135.9,134.2,128.4,127.2,126.6,79.5,67.8,58.8,55.0,51.7,44.6,28.4,27.0,10.9。
实施例12制备(3S)-N-(Boc-L-侧链OBz1保护酪氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯(1j)
按照实施例3的操作,从1.76g(4.0mmol)Boc-Tyr(OBZ1)-OH和0.91g(4.0 mmol)(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得1.80g(82%)标题化合物,为糖浆状。ESI-MS(m/e)545[M+H]+;1HNMR(CDCl3-d)δ/ppm=8.0(d,1H),7.19(s,5H),7.02(m,4H),6.72(d,2H),5.20(s,2H),4.92(m,1H),4.80(t,1H),4.51(d,1H),4.41(d,1H),3.63(d,3H),
3.29(d,1H),3.05(d,1H),2.92(m,2H),1.41(s,9H);13C-NMR(CDCl3-d)δ/ppm=171.6,170.1,157.9,155.8,141.2,136.5,134.9,131.2,129.0,128.4,127.2,126.6,114.2,79.5,70.9,55.8,52.9,52.0,44.6,37.8,28.4,27.0。实施例13制备(3S)-N-(Boc-L-脯氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯(1k)
按照实施例3的操作,从0.473g(2.2mmol)Boc-Pro-OH和0.455g(2.0mmol)(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得0.715g(92%)标题化合物,为糖浆状。 ESI-MS(m/e)389[M+H]+;1HNMR(CDCl3-d)δ/ppm=7.02(m,4H),4.80(t,1H),4.51(m,2H),4.29(t,1H),3.63(s,3H),3.20(m,4H),1.71(m,2H),1.60(m,2H),1.41(s,9H);13C-NMR(CDCl3-d)δ/ppm=171.6,170.1,155.8,135.9,134.2,128.4,127.2,126.6,79.5,55.8,52.0,47.1,44.6,29.7,28.4,27.0,22.1。
实施例14制备(3S)-N-(Boc-L-蛋氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯(11)
按照实施例3的操作,从1.096g(4.4mmol)Boc-Met-OH和0.91g(4.0mmol)(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得1.10g(87%)标题化合物,为糖浆状。ESI-MS(m/e)423[M+H]+;1HNMR(CDCl3-d)δ/ppm=8.0(d,1H),7.02(m,4H),4.80(t,1H),4.51(m,3H),3.63(s,3H),3.29(d,1H),3.05(d,1H),2.44(m,2H),2.16(t,2H),2.09(s,3H),1.41(s,9H);13C-NMR(CDCl3-d)δ/ppm=171.6,170.1,155.8,135.9,134.2,128.4,127.2,126.6,79.5,55.8,52.0,51.6,44.6,31.9,29.3,28.4,27.0,17.4。
实施例15制备(3S)-N-(Boc-L-天冬酰胺酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯(1m)
按照实施例3的操作,从1.021g(4.4mmol)Boc-Asn-OH和0.91g(4.0mmol)(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得0.89g(55%)标题化合物,为糖浆状。ESI-MS(m/e)406[M+1]+;1HNMR(CDCl3-d)δ/ppm=8.0(d,1H),7.02(m,4H), 6.0(s,2H),4.78(m,2H),4.51(d,1H),4.41(d,1H),3.63(s,3H),3.29(d,1H),3.05(d,1H),2.68(m,2H),1.41(s,9H);13C-NMR(CDCl3-d)δ/ppm=174.5,171.6,170.1,155.8,135.9,134.2,128.4,127.2,126.6,79.5,55.8,52.0,51.6,44.6,37.9,28.4,27.0。
实施例16制备(3S)-N-(Boc-L-谷氨酰胺酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯(1n)
按照实施例3的操作,从1.082g(4.4mmol)Boc-Gln-OH和0.91g(4.0mmol)(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得0.75g(45%)标题化合物,为糖浆状。ESI-MS(m/e)420[M+1]+;1HNMR(CDCl3-d)δ/ppm=8.0(d,1H),7.02(m,4H),6.0(s,2H),4.78(t,1H),4.48(m,3H),3.63(s,3H),3.29(d,1H),3.05(d,1H),2.18(t,2H),2.07(m,2H),1.41(s,9H);13C-NMR(CDCl3-d)δ/ppm=174.5,171.6,170.1,155.8,135.9,134.2,128.4,127.2,126.6,79.5,55.8,52.0,51.6,44.6,32.6,28.4,27.6,27.0。
实施例17制备(3S)-N-(Boc-L-组氨酰)-1,2,3,4-四氢异喹啉-3-S-羧酸甲酯(1o)
按照实施例3的操作,从1.122g(4.4mmol)Boc-His-OH和0.91g(4.0mmol)(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得1.10g(65%)标题化合物,为糖浆状。ESI-MS(m/e)429[M+H]+;1HNMR(CDCl3-d)δ/ppm=13.4(d,1H),8.0(s,1H),7.44(s,1H),7.02(m,4H),6.80(d,1H),4.92(t,1H),4.80(t,H),4.51(d,1H),4.41(d,1H),3.63(s,3H),3.17(m,1H),2.92(m,1H),1.41(s,9H);13C-NMR(CDCl3-d)δ/ppm=171.6,170.1,155.8,135.9,134.2,133.5,128.4,127.2,126.6,119.6,79.5,55.8,52.0,51.6,44.6,30.5,28.4,27.0。
实施例18制备(3S)-N-(Boc-L-侧链Boc保护赖氨酰)-1,2,3,4-四氢异喹啉-3-S-羧酸甲酯(1p)
按照实施例3的操作,从1.522g(4.4mmol)Boc-Lys(Boc)-OH和0.91g(4.0mmol)(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得1.40g(67%)标题化合物,为糖浆状。ESI-MS(m/e)520[M+1]+;1HNMR(CDCl3-d)δ/ppm=8.0(d,2H),7.02(m,4H),4.78(t,1H),4.52(m,2H),4.41(d,1H),3.63(s,3H),3.29(d,1H), 3.05(d,1H),2.96(m,2H),1.79(m,2H),1.55(m,2H),1.41(s,18H),,1.29(m,2H); 13C-NMR(CDCl3-d)δ/ppm=171.6,170.1,155.8,135.9,134.2,128.4,127.2,126.6,79.5,55.8,52.0,51.6,44.6,41.9,31.9,28.4,27.0,20.7。
实施例19制备(3S)N-(Boc-L-侧链Bz1保护天冬氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯(1q)
按照实施例3的操作,从1.292g(4.0mmol)Boc-Asp(OBZl)-OH和0.91g(4.0mmol)(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得1.50g(75%)标题化合物,为糖浆状。ESI-MS(m/e)497[M+1]+;1HNMR(CDCl3-d)δ/ppm=8.0(d,1H),7.19(s,5H),7.02(m,4H),5.34(s,2H),5.17(t,1H),4.81(t,1H),4.51(d,1H),4.41(d,1H),3.63(s,3H),3.29(d,1H),3.05(d,1H),2.88(m,1H),2.63(m,1H),1.48(s,9H);13C-NMR(CDCl3-d)δ/ppm=174.5,171.6,170.1,155.8,141.2,135.9,134.2,129.4,127.2,126.6,79.5,68.5,55.8,52.0,51.6,49.7,44.6,37.9,28.4,27.0。
实施例20制备(3S)N-(Boc-L-侧链Bz1保护谷氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯(1r)
按照实施例3的操作,从1.348g(4.0mmol)Boc-Glu(OBZ1)-OH和0.91g(4.0mmol)(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得1.60g(78%)标题化合物,为糖浆状。ESI-MS(m/e)511[M+H]+;1HNMR(CDCl3-d)δ/ppm=8.0(d,1H),7.19(s,5H),7.02(m,4H),5.34(s,2H),4.81(t,1H),4.53(m,1H),4.51(d,1H),4.41(d,1H),3.63(s,3H),3.29(d,1H),3.05(d,1H),2.21(m,4H),1.41(s,9H);13C-NMR(CDCl3-d)δ/ppm=174.5,171.6,170.1,155.8,141.2,135.9,134.2,129.4,127.2,126.6,79.5,68.5,55.8,52.0,51.6,44.6,37.9,28.4,27.0。
实施例21制备(3S)-N-(Boc-L-侧链NO2保护精氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯(1s)
按照实施例3的操作,从1.403g(4.4mmol)Boc-Arg(NO2)-OH和0.91g(4.0mmol)(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得1.0g(51%)标题化合物,为糖浆状。ESI-MS(m/e)494[M+H]+;1HNMR(CDCl3-d)δ/ppm=8.0(d,2H), 7.02(m,4H),4.84(m,1H),4.53(m,1H),4.51(d,1H),4.41(d,1H),3.63(s,3H),3.27(m,1H),3.04(m,1H),2.65(m,2H),2.0(d,2H),1.79(m,2H),1.55(m,2H),1.41(s,9H);13C-NMR(CDCl3-d)δ/ppm=171.8,170.1,158.2,155.8,135.9,134.2,129.4,127.2,126.6,79.5,71.7,55.8,53.8,51.2,44.6,37.1,28.4,27.0,24.3。
实施例22制备(3S)-N-(Boc-L-丙氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(2a)
将0.362g(1Mmol)制备(3S)-N-(Boc-L-丙氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯溶于5ml甲醇,冰浴下向得到的溶液中滴入7ml 2N NaOH水溶液,调节pH11。反应混合物0C搅拌3h,TLC(CCl3:CH3OH=5:1)显示制备(3S)N-(Boc-L-丙氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯消失。反应混合物用饱和KHSO4水溶液调pH7,减压浓缩除尽甲醇,残留物先用饱和KHSO4水溶液调pH2,再用乙酸乙酯萃取三次。合并的乙酸乙酯层用饱和NaCl水溶液洗两次,无水Na2SO4干燥过夜。滤除Na2SO4,滤液减压浓缩至干,得到0.348g(99%)标题化合物,为无色固体。1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),8.0(d,1H),7.25(m,4H),4.83(d,1H),4.68(m,1H),4.55(d,1H),4.49(d,1H),3.20(d,1H),2.90(d,1H),1.48(d,3H),1.41(s,9H)。
实施例23制备(3S)-N-(Boc-甘氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(2b)
按照实施例22的操作,从0.348g(1mmol)(3S)-N-(Boc-甘氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得0.334g(99%)标题化合物,为无色固体。ESI-MS(m/e)333[M-H]-;1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),8.0(d,1H),7.22(m,4H),4.80(d,1H),4.51(m,2H),3.85(d,2H),3.25(m,2H),1.41(s,9H)。
实施例24制备(3S)-N-(Boc-L-缬氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(2c)
按照实施例22的操作,从0.390g(1mmol)(3S)-N-(Boc-L-缬氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得0.35g(93%)标题化合物,为无色固体。ESI-MS(m/e)375[M-H]-;1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),8.0(d,1H),7.22(m,4H),4.80(d,1H),4.61(d,1H),4.51(m,2H),4.24(m,1H),3.25(m,2H),2.0(s,1H),, 1.41(s,9H),1.21(d,3H)。
实施例25制备(3S)-N-(Boc-L-苯丙氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(2d)
按照实施例22的操作,从0.438g(1mmol)(3S)-N-(Boc-L-苯丙氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得0.41g(96%)标题化合物,为无色固体。ESI-MS(m/e)423[M-H]-;1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),8.0(d,1H),7.22(m,9H),4.92(d,1H),4.80(d,1H),4.51(d,1H),4.41(d,1H),3.10(m,4H),1.41(s,9H)。
实施例26制备(3S)-N-(Boc-L-亮氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(2e)
按照实施例22的操作,从0.404g(1mmol)(3S)-N-(Boc-L-缬氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得0.39g(100%)标题化合物,为无色固体。ESI-MS(m/e)389[M-H]-;1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),8.0(d,1H),7.22(m,4H),4.80(d,1H),4.51(m,3H),3.10(m,2H),1.78(m,3H),1.41(s,9H),1.01(d,6H)。
实施例27制备(3S)-N-(Boc-L-异亮氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(2f)
按照实施例22的操作,从0.404g(1mmol)(3S)-N-(Boc-L-苯丙氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得0.39g(100%)标题化合物,为无色固体。ESI-MS(m/e)389[M-H]-;1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),8.0(d,1H),7.22(m,4H),4.80(d,1H),4.51(m,3H);3.10(m,2H),2.5(m,1H),1.41(s,9H),1.29(m,2H),1.06(d,3H),0.96(d,3H)。
实施例28制备(3S)-N-(Boc-L-色氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(2g)
按照实施例22的操作,从0.477g(1mmol)(3S)-N-(Boc-L-色氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得0.41g(88%)标题化合物,为无色固体。ESI-MS(m/e)462[M-H]-;1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),10.1(s,1H),8.0(d,1H),7.18(d,4H),7.01(m,4H),6.80(s,1H),4.90(d,1H),4.81(d,1H),4.51(m,2H),3.10(m,4H),1.41(s,9H)。
实施例29制备(3S)-N-(Boc-L-侧链OBz1保护丝氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(2h)
按照实施例22的操作,从0.468g(1mmol)(3S)-N-(Boc-L-侧链OBZ1保护丝氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得0.42g(93)标题化合物,为无色固体。ESI-MS(m/e)453[M-H]-;1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),8.0(d,1H),7.19(d,5H),7.01(m,4H),4.83(m,2H),4.63(s,2H),4.51(m,2H),3.86(m,2H),3.29(d,1H),3.05(d,1H),
实施例30制备(3S)-N-(Boc-L-苏氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(2i)
按照实施例22的操作,从0.392g(1mmol)(3S)-N-(Boc-L-苏氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得0.312g(82%)标题化合物,,为无色固体。ESI-MS(m/e)377[M-H]-;1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),8.0(d,1H),7.02(m,4H),4.80(t,1H),
4.61(d,1H),4.46(m,2H),4.24(m,1H),3.29(d,1H),3.05(d,1H),2.0(s,1H),1.41(s,9H),1.21(d,3H)。
实施例31制备(3S)-N-(Boc-L-酪氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(2j)
按照实施例22的操作,从0.454g(1mmol)(3S)-N-(Boc-L-侧链OBZ1保护酪氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得0.41g(93%)标题化合物,为无色固体。 ESI-MS(m/e)439[M-1]-;1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),8.0(d,1H),7.00(m,6H),6.72(d,2H),4.92(m,3H),4.51(d,1H),4.41(d,1H),3.29(d,1H),3.05(d,1H),2.92(m,2H),1.41(s,9H)。
实施例32制备(3S)-N-(Boc-L-脯氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(2k)
按照实施例22的操作,从0.388g(1mmol)(3S)-N-(Boc-L-脯氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得0.326g(87%)标题化合物,为无色固体。ESI-MS(m/e)373[M-1]-1;1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),7.02(m,4H),4.80(t,1H),4.51(m,2H),4.29(t,1H),3.20(m,4H),1.71(m,2H),1.60(m,2H),1.41(s,9H)。
实施例33制备(3S)-N-(Boc-L-蛋氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(21)
按照实施例22的操作,从0.422g(1mmol)(3S)-N-(Boc-L-蛋氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得0.356g(87%)标题化合物,为无色固体。ESI-MS(m/e)407[M-1]-;1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),8.0(d,1H),7.02(m,4H),4.80(t,1H);4.51(m,3H),3.29(d,1H),3.05(d,1H),2.44(m,2H),2.16(t,2H),2.09(s,3H),1.41(s,9H)。
实施例34制备(3S)-N-(Boc-L-天冬酰胺酰)-1,2,3,4-四氢异喹啉-3-羧酸(2m)
按照实施例22的操作,从0.405g(1mmol)(3S)-N-(Boc-L-天冬酰胺酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得0.305g(78%)标题化合物,为无色固体。ESI-MS(m/z)390[M-H]-;1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),8.0(d,1H),7.02(m,4H),6.0(s,2H),4.78(m,2H),4.51(d,1H),4.41(d,1H),3.29(d,1H),3.05(d,1H),2.68(m,2H),1.41(s,9H)。
实施例35制备(3S)-N-(Boc-L-谷氨酰胺酰)-1,2,3,4-四氢异喹啉-3-羧酸(2n)
按照实施例22的操作,从0.419g(1mmol)(3S)-N-(Boc-L-谷氨酰胺酰)-1,2,3,4-四氢异喹啉-3-S-羧酸甲酯制得0.298g(74%)标题化合物,,为无色固体。ESI-MS(m/e)404[M-1]-;1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),8.0(d,1H),7.02(m,4H),6.0(s,2H),4.78(t,1H),4.48(m,3H),3.29(d,1H),3.05(d,1H),2.18(t,2H),2.07(m,2H),1.41(s,9H)。
实施例36制备(3S)-N-(Boc-L-组氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(2o)
按照实施例22的操作,从0.428g(1mmol)(3S)-N-(Boc-L-组氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得0.20g(48%)标题化合物,,为无色固体。ESI-MS(m/e)413[M-H]-;1HNMR(CDCl3-d)δ/ppm=13.4(d,1H),11.0(s,1H),8.0(s,1H),7.44(s,1H),7.02(m,4H),6.80(d,1H),4.92(t,1H),4.80(t,1H),4.51(d,1H),4.41(d,1H),3.17(m,1H),2.92(m,1H),1.41(s,9H)。
实施例37制备(3S)-N-(Boc-L-侧链Boc保护赖氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(2p)
按照实施例22的操作,从0.519g1mmol)(3S)-N-(Boc-L-侧链Boc保护赖氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得0.502g(95%)标题化合物,为无色固体。ESI-MS(m/e)504[M-H]-;1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),8.0(d,2H),7.02(m,4H),4.78(t,1H),4.52(m,2H),4.41(d,1H),3.29(d,1H),3.05(d,1H),2.96(m,2H),1.79(m,2H),1.55(m,2H),1.41(s,18H),1.29(m,2H)。1.41(s,9H)。实施例38制备(3S)-N-(Boc-L-天冬氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(2q)
按照实施例22的操作,从0.496g(1mmol)(3S)-N-(Boc-L-侧链Bz1保护天冬氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得0.256g(65%)标题化合物,为无色固体。ESI-MS(m/e)391[M-H]-;1HNMR(CDCl3-d)δ/ppm=11.0(s,2H),8.0(d,1H),7.02(m,4H),4.85(m,2H),4.51(d,1H),4.41(d,1H),3.16(d,1H),2.88(m,2H),2.63(d,1H),1.41(s,9H)。
实施例39制备(3S)-N-(Boc-L-谷氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(2r)
按照实施例22的操作,从0.510g(1mmol)(3S)-N-(Boc-L-侧链Bz1保护谷氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得0.249g(61%)标题化合物,为无色固体。ESI-MS(m/e)405[M-H]-;1HNMR(CDCl3-d)δ/ppm=11.0(s,2H),8.0(d,1H),7.02(m,4H),4.85(t,1H),4.53(m,1H),4.51(d,1H),4.41(d,1H),3.16(d,1H),2.91(d,1H),2.11(m,4H),1.41(s,9H)。
实施例40制备(3S)-N-(Boc-L-侧链NO2保护精氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(2s)
按照实施例23的操作,从0.493g(1mmol)(3S)-N-(Boc-L-侧链NO2保护精氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得0.412g(86%)标题化合物,为无色固体。ESI-MS(m/e)478[M-H]-;1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),8.0(d,2H),7.02(m,4H),4.84(m,1H),4.53(m,1H),4.51(d,1H),4.41(d,1H),3.27(m,1H),3.04(m,1H),2.65(m,2H),2.0(d,2H),1.79(m,2H),1.55(m,2H),1.41(s,9H)。
实施例41制备(3S)-N-(Boc-L-精氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(2a’)
先将0.400g(0.84mmol)(3S)-N-(Boc-L-侧链NO2保护精氨酰)-1,2,3,4-四氢异喹啉-3-羧酸溶于10ml无水乙醇,往得到的溶液中加入0.300gPt/C。室温下往该悬浮液,通入H2140h,TLC(CCl3:CH3OH=5:1)显示(3S)-N-(Boc-L-侧链NO2保护精氨酰)-1,2,3,4-四氢异喹啉-3-羧酸消失。反应混合物过滤,滤液减压浓缩,得到0.256g(75%)标题化合物,为糖浆。ESI-MS(m/e)432[M-H]-; 1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),8.0(d,2H),7.02(m,4H),4.84(m,1H),4.53(m,1H),4.51(d,1H),4.41(d,1H),3.27(m,1H),3.04(m,1H),2.65(m,2H),2.0(d,2H),1.79(m,2H),1.55(m,2H),1.41(s,9H)。
实施例42制备(3S)-N-(L-丙氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(3a)
先将0.300g(0.86mmol)(3S)-N-(Boc-L-丙氨酰)-1,2,3,4-四氢异喹啉-3-羧酸溶于2ml乙酸乙酯中,再往得到的溶液中加6ml 4N氯化氢-乙酸乙酯溶液。反应混合物室温搅拌4h,TLC(CCl3:CH3OH=5:1展开剂)显示(3S)-N-(Boc-L-丙氨酰)-1,2,3,4-四氢异喹啉-3-羧酸消失。反应混合物减压浓缩至干。残留物用乙酸乙酯溶解,得到的溶液减压浓缩至干。该操作重复抽三次,除去游离氯化氢。残留物用无水乙醚溶解,得到的溶液减压浓缩至干。该操作重复抽三次。得0.210g(99%)标题化合物,为无色固体。Mp.125-126℃;ESI-MS(m/e)247[M-H]-;IR 3411,2969,1734,1648,1497,1457,1375,1198,1111,750,599;[α]D 20=-78(c=1.0,H2O);1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),7.02(m,4H),4.83(d,1H),4.51(d,1H),4.43(d,1H),3.74(m,1H),3.16(d,1H),2.91(d,1H),2.0(s,2H),128(d,3H);13C-NMR(CDCl3-d)δ/ppm=172.9,171.6,136.1,134.7,127.2,126.3,125.8,58.3,46.9,44.6,26.7,20.8。
实施例43制备(3S)-N-(甘氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(3b)
按照实施例42的操作,从0.300g(0.90mmol)制备(3S)-N-(Boc-甘氨酰)-1,2,3,4-四氢异喹啉-3-羧酸制得0.198g(94%)标题化合物,为无色固体。Mp182-183℃,ESI-MS(m/e)233[M-H]-;IR 3411,2969,1734,1648,1497, 1457,1375,1198,1111,750,599;[α]D 20=-20(c=1.0,H2O); 1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),7.02(m,4H),4.80(d,1H),4.51(m,2H),3.54(d,2H),3.16(d,1H),2.91(d,1H),2.0(s,2H);13C-NMR(CDCl3-d)δ/ppm=171.6,168.6,135.9,132.9,128.4,127.2,126.6,57.8,52.0,43.6,41.5,27.0。
实施例44制备(3S)-N-(L-缬氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯(3c)
按照实施例42的操作,从0.30g(0.80mmol)制备(3S)-N-(Boc-L-缬氨酰)-1,2,3,4-四氢异喹啉-3-羧酸制得0.188g(85%)标题化合物,为无色固体。Mp117-121℃;ESI-MS(m/e)275[M-H]-;IR3411,2969,1734,1648,1497,1457,1375,1198,1111,750,599;[α]D 20=-26(c=1.0,H2O); 1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),7.02(m,4H),4.80(d,1H),4.51(m,2H),3.53(m,1H),3.08(m,2H),2.29(m,1H),2.0(s,2H),1.21(s,6H);13C-NMR(CDCl3-d)δ/ppm=171.6,168.6,135.9,133.9,128.4,127.2,126.6,58.4,55.8,44.6,34.4,27.0,17.9。
实施例45制备(3S)-N-(L-苯丙氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(3d)
按照实施例42的操作,从0.30g(0.93mmol)(3S)-N-(Boc-L-苯丙氨酰)-1,2,3,4-四氢异喹啉-3-羧酸制得0.211g(92%)标题化合物,为无色固体。Mp121-123℃;ESI-MS(m/e)323[M-H]-;IR 3464,2948,2769,2685,2643,2498,1746,1574;[α]D 20=-16(c=1.0,H2O);1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),7.12(m,9H),4.85(d,1H),4.51(d,1H),4.41(d,1H),3.95(m,1H),3.16(d,1H),2.92(m,3H),2.0(s,2H);13C-NMR(CDCl3-d)δ/ppm=171.6,170.1,139.5,135.9,134.2,128.4,127.2,126.6,57.8,52.0,44.6,40.8,27.0。
实施例46制备(3S)-N-(L-亮氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(3e)
按照实施例42的操作,从0.30g(0.77mmol)(3S)-N-(Boc-L-缬氨酰)-1,2,3,4-四氢异喹啉-3-羧酸制得0.20g(89%)标题化合物,为无色固体。Mp136-137C;ESI-MS(m/e)289[M-H]-;IR3464,2948,2769,2685,2643,2498,1746,1574;[α]D 20=-16(c=1.0,H2O);[α]D=-28(c=1.0,H2O);1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),7.22(m,4H),4.85(d,1H),4.51(d,1H),4.41(d,1H),3.58(m,1H),3.10(m,2H),2.0(s,2H),1.78(m,3H),1.01(d,6H);13C-NMR(CDCl3-d)δ/ppm=171.6,170.1,135.9,134.2,128.4,127.2,126.6,58.3,50.7,44.6,28.4,27.0,22.3。
实施例47制备(3S)-N-(L-异亮氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(3f)
按照实施例42的操作,从0.30g(0.77mmol)(3S)-N-(Boc-L-苯丙氨酰)-1,2,3,4-四氢异喹啉-3-羧酸制得0.202g(89%)标题化合物,为无色固体。Mp125-126℃;ESI-MS(m/e)289[M-H]-;IR3414,2967,1736,1648,1497,1457,1378,1200,749;[α]D 20=-4(c=1.0,H2O);1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),7.02(m,4H),4.80(m,1H),4.51(m,2H),3.53(d,1H),3.10(m,2H),2.05(m,3H),1.29(m,2H),1.06(d,3H),0.96(d,3H);13C-NMR(CDCl3-d)δ/ppm=171.6,170.1,135.9,134.2,128.4,127.2,126.6,58.8,55.0,44.6,39.0,26.4,24.3,14.6,10.9。
实施例48制备(3S)-N-(L-色氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(3g)
按照实施例42的操作,从0.30g(0.65mmol)(3S)-N-(Boc-L-色氨酰)-1,2,3,4-四氢异喹啉-3-羧酸制得0.213g(91%)标题化合物,为无色固体。Mp134-138℃;ESI-MS(m/e)362[M-H]-;IR 3411,2969,1734,1648,1497,1457,1375,1198,1111,750,599;[α]D=-86(c=1.0,H2O); 1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),10.1(s,1H),7.18(d,4H),7.01(m,4H),6.80(s,1H),4.85(d,1H),4.51(m,2H),3.95(m,1H),2.9(m,4H),2.0(d,2H);13C-NMR(CDCl3-d)δ/ppm=171.6,170.1,135.9,134.2,128.4,127.2,126.6,122.9,119.0,110.9,57.8,53.1,44.6,34.2,27.0。
实施例49制备(3S)-N-(L-丝氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(3h)
按照实施例42的操作,从0.30g(0.83mmol)(3S)-N-(Boc-L-丝氨酰)-1,2,3,4-四氢异喹啉-3-羧酸制得0.204g(94%)标题化合物,为无色固体。Mp111-113℃;ESI-MS(m/e)262[M-H]-;IR 3411,2969,1734,1648,1497,1457,1375,1198,1111,750,599;[α]D 20=-86(c=1.0,H2O);1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),7.02(m,4H),4.83(m,2H),4.51(m,2H),3.86(m,2H),3.65(m,1H),3.19(d,1H),2.92(d,1H),2.0(s,3H);13C-NMR(CDCl3-d)δ/ppm=171.6,170.1,137.2,135.9,134.2,128.4,127.2,125.6,65.8,58.0,55.7,44.6,27.0。
实施例50制备(3S)N-(L-苏氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(3i)
按照实施例42的操作,从0.30g(0.82mmol)(3S)-N-(Boc-L-苏氨酰)-1,2,3,4-四氢异喹啉-3-羧酸制得0.15g(68%)标题化合物,为无色固体。Mp96-99℃;ESI-MS(m/e)277[M-H]-;IR 3411,2969,1734,1648,1497,1457,1375,1198,1111,750,599;[α]D 20=-10(c=1.0,H2O); 1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),7.02(m,4H),4.80(t,1H),4.46(m,2H),3.85(m,1H),3.64(t,1H),3.19(d,1H),3.00(d,1H),2.0(s,3H),1.21(d,3H);13C-NMR(CDCl3-d)δ/ppm=171.6,170.1,135.9,134.2,128.4,127.2,126.6,70.5,67.8,64.2,58.8,44.6,27.0,18.9。
实施例51制备(3S)-N-(L-酪氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(3j)
按照实施例42的操作,从0.30g(0.79mmol)(3S)-N-(Boc-L-酪氨酰)-1,2,3,4-四氢异喹啉-3-羧酸制得0.22g(95%)标题化合物,为无色固体。Mp116-118°C;ESI-MS(m/e)339[M-H]-;IR3411,2969,1734,1648,1497,1457,1375,1198,1111,750,599;[α]D 20=-26(c=1.0,H2O); 1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),7.01(m,6H),6.85(d,2H),5.0(s,1H),4.82(m,1H),4.51(d,1H),4.41(d,1H),3.93(t,1H),3.19(m,1H),2.92(m,3H),2.0(d,2H);13C-NMR(CDCl3-d)δ/ppm=171.6,170.1,155.9,136.5,134.9,131.2,129.0,128.4,127.2,126.6,116.2,57.8,52.0,44.6,40.8,27.0。
实施例52制备(3S)-N-(L-脯氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(3k)按照实施例22的操作,从0.30g(0.8mmol)(3S)-N-(Boc-L-脯氨酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯制得0.326g(87%)标题化合物,为无色固体。Mp?;ESI-MS(m/e)273[M-H]-;IR 3411,2969,1734,1648,1497,1457,1375,1198,1111,750,599;[α]D=-114(c=1.0,H2O);1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),7.02(m,4H),4.85(t,1H);4.51(m,2H),3.69(m,1H),3.00(m,2H),2.75(m,2H),2.0(m,1H),1.71(m,4H);13C-NMR(CDCl3-d)δ/ppm=171.6,170.1,135.9,134.2,128.4,127.2,126.6,59.0,57.8,45.1,44.6,32.2,27.0,24.1。
实施例53制备(3S)-N-(L-蛋氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(3l)
按照实施例42的操作,从0.30g(0.74mmol)(3S)-N-(Boc-L-蛋氨酰)-1,2,3,4-四氢异喹啉-3-羧酸制得0.199g(88%)标题化合物,为无色固体。Mp81-84C;ESI-MS(m/e)307[M-H]-;IR;3411,2969,1734,1648,1497,1457,1375,1198,1111,750,599;[α]D 20=-64(c=1.0,H2O); 1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),7.02(m,4H),4.85(t,1H),4.51(d,1H),4.41(d,1H),3.56(m,2H),3.15(m,1H),2.91(m,1H),2.44(t,2H),2.16(t,2H),2.09(s,3H),2.0(m,2H);13C-NMR(CDCl3-d)δ/ppm=171.6,170.1,135.9,134.2,128.4,127.2,126.6,58.8,52.0,44.6,33.9,29.3,27.0,17.4。
实施例54制备(3S)-N-(L-天冬酰胺酰)-1,2,3,4-四氢异喹啉-3-羧酸(3m)按照实施例42的操作,从0.30g(0.77mmol)(3S)-N-(Boc-L-天冬酰胺酰)-1,2,3,4-四氢异喹啉-3-羧酸制得0.138g(62%)标题化合物,为无色固体。Mp107-108℃;ESI-MS(m/e)290[M-H]-;IR3411,2969,1734,1648,1497,1457,1375,1198,1111,750,599;[α]D 20=-42(c=1.0,H2O); 1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),7.02(m,4H),6.0(s,2H),4.85(m,1H),4.51(d,1H),4.41(d,1H),3.79(d,1H),3.15(d,1H),2.90(m,1H),2.56(m,2H),2.0(s,2H);13C-NMR(CDCl3-d)δ/ppm=174.5,171.6,170.1,135.9,134.2,128.4,127.2,126.6,58.2,48.6,44.6,39.9,27.0。
实施例55制备(3S)-N-(L-谷氨酰胺酰)-1,2,3,4-四氢异喹啉-3-S-羧酸(3n)按照实施例42的操作,从0.30g(0.74mmol)(3S)-N-(Boc-L-谷氨酰胺酰)-1,2,3,4-四氢异喹啉-3-羧酸制得0.146g(65%)标题化合物,为无色固体。Mp90-92C;ESI-MS(m/e)306[M-H]-;IR3411,2969,1734,1648,1497,1457,1375, 1198,1111,750,599;[α]D 20=-56(c=1.0,H2O); 1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),7.02(m,4H),6.0(s,2H),4.85(t,1H),4.51(d,1H),4.41(d,1H),3.59(t,1H),3.15(d,1H),2.88(d,1H),2.07(m,4H);13C-NMR(CDCl3-d)δ/ppm=174.5,171.6,170.1,135.9,134.2,128.4,127.2,126.6,57.8,51.6,44.6,32.6,30.6,27.0。
实施例56制备(3S)-N-(L-组氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(3o)
按照实施例42的操作,从0.30g(0.72mmol)(3S)-N-(Boc-L-组氨酰)-1,2,3,4-四氢异喹啉-3-羧酸制得0.169g(74%)标题化合物,为无色固体。Mp127-128℃;ESI-MS(m/e)313[M-H]-;IR 3411,2969,1734,1648,1497,1457,1375,1198,1111,750,599;[α]D 20=-38(c=1.0,H2O); 1HNMR(CDCl3-d)δ/ppm=13.4(d,1H),11.0(s,1H),7.44(s,1H),7.02(m,4H),6.80(d,1H),4.85(t,1H),4.51(d,1H),4.41(d,1H),3.95(t,1H),3.17(m,1H),2.92(m,1H),2.0(d,2H);13C-NMR(CDCl3-d)δ/ppm=171.6,170.1,135.9,134.2,133.5,128.4,127.2,126.6,119.6,57.8,52.0,44.6,33.5,27.0。
实施例57制备(3S)-N-(L-赖氨酰)-1,2,3,4-四氢异喹啉-3-S-羧酸(3p)
按照实施例22的操作,从0.30g(0.59mmol)(3S)-N-(Boc-L-侧链Boc保护赖氨酰)-1,2,3,4-四氢异喹啉-3-羧酸制得0.180g(100%)标题化合物,为无色固体。Mp121-123℃;ESI-MS(m/e)304[M-H]-;IR 3411,2969,1734,1648,1497,1457,1375,1198,1111,750,599;[α]D 20=-24(c=1.0,H2O); 1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),7.02(m,4H),4.85(t,1H),4.51(d,1H),4.41(d,1H),3.56(m,1H),3.19(d,1H),2.92(d,1H),2.65(m,2H),2.0(m,4H),1.79(m,2H),1.55(m,2H),1.29(m,2H);13C-NMR(CDCl3-d)δ/ppm=171.6,170.1,135.9,134.2,128.4,127.2,126.6,57.8,52.0,44.6,41.9,34.2,31.9,27.0,20.7。
实施例58制备(3S)-N-(L-天冬氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(3q)
按照实施例42的操作,从0.30g(0.76mmol)(3S)-N-(Boc-L-天冬氨酰)-1,2,3,4-四氢异喹啉-3-羧酸制得0.150g(67%)标题化合物,为无色固体。Mp113-116 ℃;ESI-MS(m/e)291[M-H]-;IR;3411,2969,1734,1648,1497,1457,1375,1198,1111,750,599;[α]D 20=-36(c=1.0, H2O); 1HNMR(CDCl3-d)δ/ppm=11.0(s,2H),7.02(m,4H),4.85(t,1H),4.51(d,1H),4.41(d,1H),3.89(m,1H),3.19(d,1H),2.92(d,1H),2.73(m,2H),2.0(s,2H);13C-NMR(CDCl3-d)δ/ppm=174.5,171.6,170.1,141.2,135.9,134.2,129.4,127.2,126.6,57.8,49.7,44.6,43.1,27.0。
实施例59制备(3S)-N-(L-谷氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(3r)
按照实施例42的操作,从0.30g(?mmol)(3S)-N-(Boc-L-谷氨酰)-1,2,3,4-四氢异喹啉-3-羧酸制得0.158g(70%)标题化合物,为无色固体。Mp113-116℃;ESI-MS(m/e)305[M-H]-;IR;3411,2969,1734,1648,1497,1457,1375,1198,1111,750,599;[α]D=-120(c=1.0,H2O); 1HNMR(CDCl3-d)δ/ppm=11.0(s,2H),7.02(m,4H),4.85(t,1H),4.51(d,1H),4.41(d,1H),3.56(m,1H),3.19(d,1H),2.92(d,1H),2.21(m,2H),2.03(m,4H); 13C-NMR(CDCl3-d)δ/ppm=174.5,171.6,170.1,141.2,135.9,134.2,129.4,127.2,126.6,57.8,52.0,44.6,29.4,27.0。
实施例60制备(3S)-N-(L-精氨酰)-1,2,3,4-四氢异喹啉-3-羧酸(3s)
按照实施例42的操作,从0.30g(0.9mmol)(3S)-N-(Boc-L-精氨酰)-1,2,3,4-四氢异喹啉-3-羧酸制得0.150g(65%)标题化合物,为无色固体。Mp199-202℃;ESI-MS(m/e)334[M+H]+;IR 3411,2969,1734,1648,1497,1457,1375,1198,1111,750,599;[α]D=-10(c=1.0,H2O); 1HNMR(CDCl3-d)δ/ppm=11.0(s,1H),7.02(m,4H),4.84(m,1H),4.51(d,1H);4.41(d,1H),3.56(t,1H),3.19(d,1H),2.92(d,1H),2.65(m,2H),2.0(d,6H),1.79(m,2H),1.55(m,2H);13C-NMR(CDCl3-d)δ/ppm=171.8,170.1,158.2,135.9,134.2,129.4,127.2,126.6,58.8,51.8,44.6,37.1,32.1,27.0,24.3。
试验例1 本发明化合物(3a-s)的抗血栓活性试验
测定前将3a-s溶于生理盐水。雄性Wistra大鼠(220-240g)用戊巴比妥钠 (5.0mg/ml,3ml/kg)麻醉后分离右颈动脉和左颈静脉。把一根6cm长的事先精密称重的丝线放在聚乙烯管中,将插管充满肝素钠的生理盐水溶液(50IU/ml)后,一端插入左侧静脉,从一端加入定量肝素钠抗凝,并加入3a-s的生理盐水溶液(浓度为0.67mg/ml,剂量为5μmol/kg),然后插入右侧动脉。血流从右侧动脉流经聚乙烯管流入左侧静脉,15分钟后取出附有血栓的丝线并记录湿重,附有血栓的丝线在干燥器中放置两周后,称量干重。以生理盐水(NS,3ml/kg)作空白对照,以阿司匹林(剂量1组为0.2mol/kg,剂量2组为500μmol/kg)作阳性对照。结果见表1。
表1的数据表明在5μmol/kg剂量下3a-s具有明显的抗血栓活性。从表1的数据还可以看出,虽然3a-s在相当于1/40000阿司匹林剂量下抗血栓活性弱于阿司匹林,但是在相当于1/100阿司匹林剂量下3a-s的抗血栓活性非常显著地强于阿司匹林。在剂量仅是3a-s100倍的情形下,阿司匹林不显示抗血栓作用。该结果说明,3a-s是优秀的抗血栓剂。
表1 3a-s治疗对大鼠血栓形成的影响
化合物 | 血栓湿重(X±SDmg) | 血栓干重(X±SDmg) |
NS(3ml/kg) | 28.54±2.62 | 5.87±0.34 |
Aspirin1 | 13.22±1.67a | 2.44±0.71b |
Aspirin2 | 27.60±1.89 | 5.09±0.98 |
IQ | 21.02±1.49a | 3.90±0.54b |
3a | 20.74±3.03a | 3.83±1.06b |
3b | 21.17±3.47a | 3.94±0.82b |
3c | 20.12±2.59a | 3.70±0.48b |
3d | 22.23±3.72a | 4.12±0.96b |
3e | 19.12±3.12a | 3.33±1.16b |
3f | 21.14±2.24a | 3.93±0.76b |
3g | 19.47±2.14a | 3.56±0.66b |
3h | 18.00±1.59a | 3.34±0.47b |
3i | 20.73±2.53a | 3.84±1.03b |
3j | 20.92±3.44a | 3.82±0.88b |
3k | 21.09±3.68a | 3.90±0.90b |
3l | 19.76±2.02a | 3.65±0.73b |
3m | 22.66±3.45a | 4.20±0.93b |
3n | 21.30±3.69a | 3.95±0.80b |
3o | 21.78±2.96a | 4.04±0.72b |
3p | 21.31±2.75a | 3.94±0.60b |
3q | 20.36±3.54a | 3.76±0.99b |
3r | 20.87±2.85a | 3.85±0.90b |
3s | 20.06±3.78a | 3.69±0.73b |
n=12,a)与NS及Aspirin2组血栓湿重比,p<0.001;b)与NS及Aspirin2组血栓干重比,p<0.001.
Claims (6)
2.一种制备权利要求1通式Ⅰ化合物的方法,包括:
(1)、在浓盐酸存在下苯丙氨酸与甲醛进行Pictet-Spengler缩合制备(3S)-1,2,3,4-四氢异喹啉-3-羧酸;
(2)、在氯化亚砜和甲醇存在下将(3S)-1,2,3,4-四氢异喹啉-3-羧酸转化为(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯;
(3)、在二环己基碳二亚胺和N-甲基吗啉存在下将(3S)-1,2,3,4-四氢异喹啉-3-羧酸甲酯与Boc-L-氨基酸偶联制备(3S)-N-(Boc-L-氨基酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯;所述的Boc-L-氨基酸选自L-丙氨酸、甘氨酸、L-缬氨酸、L-苯丙氨酸、L-亮氨酸、L-异亮氨酸、L-丝氨酸、L-酪氨酸、L-脯氨酸、L-蛋氨酸、L-谷氨酰胺、L-赖氨酸、L-谷氨酸或L-精氨酸;
(4)、在碱水溶液中将(3S)N-(Boc-L-氨基酰)-1,2,3,4-四氢异喹啉-3-羧酸甲酯水解制备(3S)-N-(Boc-L-氨基酰)-1,2,3,4-四氢异喹啉-3-羧酸;
(5)、在氯化氢-乙酸乙酯溶液中将(3S)-N-(Boc-L-氨基酰)-1,2,3,4-四氢异喹啉-3-羧酸脱Boc得到(3S)-N-(L-氨基酰)-1,2,3,4-四氢异喹啉-3-羧酸。
3.按照权利要求2的方法,其特征在于,步骤(4)中所述的碱是NaOH或KOH。
4.按照权利要求2的方法,其特征在于,步骤(4)中所述的碱是浓度为2N的NaOH。
5.按照权利要求2的方法,其特征在于,步骤(5)中所述的氯化氢-乙酸乙酯溶液是6N的氯化氢-乙酸乙酯溶液。
6.权利要求1所述通式Ⅰ化合物在制备抗血栓药物中的用途。
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CN101899084B (zh) * | 2009-05-26 | 2012-09-05 | 首都医科大学 | (3s)-1,2,3,4-四氢异喹啉-3-羧酸三肽缀合物及其制备方法和应用 |
CN101906097B (zh) * | 2009-06-02 | 2012-06-27 | 首都医科大学 | 1,3-二氧六环类化合物及其合成方法和在医学中应用 |
CN102120727B (zh) * | 2010-01-07 | 2013-08-28 | 首都医科大学 | N-[(3s)-n-氨基酰-1,2,3,4-四氢异喹啉-3-甲酰基]氨基酸及其合成方法和应用 |
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CN102796167B (zh) * | 2011-05-26 | 2014-01-08 | 首都医科大学 | (S)-4,5,6,7-四氢-3H-咪唑并[4,5-c]吡啶-6-甲酰-L-脯氨酰-L-丙氨酰-L-氨基酸及其制备方法和应用 |
CN102807600B (zh) * | 2011-06-03 | 2014-08-13 | 首都医科大学 | 氨基酸修饰的菠菜素衍生物及其制备方法和应用 |
CN102827245A (zh) * | 2011-06-13 | 2012-12-19 | 首都医科大学 | N-[2-(3-乙酰基-2-氧代-2h-吡啶-1-基)-乙酰]-l-氨基酸,其合成方法及应用 |
CN103450336B (zh) * | 2012-05-29 | 2015-07-08 | 首都医科大学 | Krgd肽修饰的咔啉并六氢吡嗪-1,4-二酮、其制备方法、抗血栓作用和应用 |
CN103450339B (zh) * | 2012-05-29 | 2015-07-08 | 首都医科大学 | Lrgd肽修饰的咔啉并六氢吡嗪-1,4-二酮、其制备方法、抗血栓作用和应用 |
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