CN102241675A - (1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰氨基酸衍生物及其制备和应用 - Google Patents
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰氨基酸衍生物及其制备和应用 Download PDFInfo
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Abstract
本发明通过将5-甲酰水杨酸甲酯与L-色氨酸苄酯反应,然后将所得化合物进行氨基酸的修饰,得到一系列(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰氨基酸衍生物及其中间体,并且对这些衍生物进行了抗血小板聚集活性和抗血栓活性的研究。本发明方法简单,所用原料易得、安全、价廉,所得产物具有抗血小板聚集活性和抗血栓活性,有利于抗血小板药物的发展,因而本发明公开了(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰氨基酸作为抗血栓剂的临床应用前景。
Description
技术领域
本发明涉及一种抗血小板药物,特别涉及(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰氨基酸衍生物及其制备和应用,属于生物医药领域。
背景技术
血栓性疾病是严重危害人类健康的重大疾病之一。血栓形成一般认为与多种因素引起的血小板聚集、黏附及释放有关。因此,抗血小板药一直是人们研究的热点。
S-咔啉羧酸是从小根蒜或薤中分离得到的一种生物碱,具有安全、便宜等优点,而且具有明确的抗血小板聚集活性,咔啉羧酸的体外实验证明其抗血小板聚集活性是阿司匹林的6倍。实验室以前的研究成果表明,将内源性的氨基酸引入咔啉羧酸的3位羧基,能明显改善其水溶性,提高生物利用度,增强抗血小板聚集活性。发明人在研究中认识到,3-位氨基酸修饰的咔啉羧酸的抗栓活性与它们的构象伸展程度(Jiawang Liu,Xueyun Jiang,Ming Zhao,Xiaoyi Zhang,Meiqing Zheng,Li Peng and Shiqi Peng,A class of 3S-2-aminoacyltetrahydro-β-carboline-3-carboxylic acids:Their facile synthesis,inhibition for plateletactivation and high in vivo anti-thrombotic potency.J.Med.Chem.2010,53,3106-3116)。发明人计算了一批1-位不同取代基取代的3-位氨基酸修饰的咔啉羧酸,发现1-位水杨酸甲脂取代的3-位氨基酸修饰的咔啉羧酸的构象伸展程度最高。基于这些理由,本发明以1-位水杨酸甲脂取代的咔啉羧酸为母核,将内源性氨基酸对咔啉羧酸母核的3-位羧基进行修饰,得到新型的咔啉羧酸衍生物并对其进行体内外抗血栓评价,期望可以改善药物的转运与代谢过程,提高生物利用度,获得更好的抗血栓活性。
发明内容
为了解决现有技术存在的缺陷,本发明提供了一种通式(I)的衍生物,并对这些衍生物进行了抗血小板凝集活性和抗血栓活性的研究,得到了一类新型具有抗血小板凝集作用和抗血栓作用的药物。
本发明是通过以下技术方案来解决这些缺陷的:
一种以下结构的化合物
一种以下结构的化合物
一种以下通式的化合物
其中,4a中AA为甘氨酰基;4b中AA为L-丙氨酰基;4c中AA为L-缬氨酰基;4d中AA为L-异亮氨酰基;4e中AA为L-亮氨酰基;4f中AA为L-苯丙氨酰基;4g中AA为L-色氨酰基;4h中AA为L-酪氨酰基;4i中AA为L-丝氨酰基;4j中AA为L-天冬酰胺酰基;4k中AA为L-谷氨酰胺酰基;41中AA为L-苏氨酰基;4m中AA为L-天冬氨酰基;4n中AA为L-谷氨酰基;4o中AA为L-赖氨酰基;4p中AA为L-精氨酰基。
一种以下通式的化合物
其中,5a中AA为甘氨酰基;5b中AA为L-丙氨酰基;5c中AA为L-缬氨酰基;5d中AA为L-异亮氨酰基;5e中AA为L-亮氨酰基;5f中AA为L-苯丙氨酰基;5g中AA为L-色氨酰基;5h中AA为L-酪氨酰基;5i中AA为L-丝氨酰基;5j中AA为L-天冬酰胺酰基;5k中AA为L-谷氨酰胺酰基;51中AA为L-苏氨酰基;5m中AA为L-天冬氨酰基;5n中AA为L-谷氨酰基;5o中AA为L-赖氨酰基;5p中AA为L-精氨酰基。
本发明还提供了制备(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-羧酸苄酯(2)的方法,包括如下步骤:在二氯甲烷和三氟醋酸存在下,5-甲酰水杨酸甲酯与L-色氨酸苄酯在室温下反应。
本发明还提供了制备(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-羧酸(3)的方法,具体包括如下步骤:
将L-色氨酸、苯甲醇和多聚磷酸在75℃油浴中反应制备得到L-色氨酸苄酯(1);将5-甲酰水杨酸、甲醇、浓H2SO4在微波反应仪90℃下反应制备得到5-甲酰水杨酸甲酯;在三氟醋酸及二氯甲烷存在下,将L-色氨酸苄酯及5-甲酰水杨酸甲酯进行Pictet-Spengler缩合制备(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-羧酸苄酯(2);用四氢呋喃(THF)和甲醇的混合液溶解(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-羧酸苄酯(2),加入20%钯/碳,与氢气反应得到结构为(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-羧酸的母核(3)。
本发明还提供了制备(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰氨基酸苄酯(4a-p)的方法,即在(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-羧酸(3)的羧基端引入氨基酸苄酯制备(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰氨基酸苄酯(4a-p),具体包括如下步骤:
将(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-羧酸(3)溶于四氢呋喃,在冰浴条件下依次加入1-羟基苯并三唑和二环己基碳二亚胺进行活化;将AA-OBzl溶于四氢呋喃,用NMM调节pH至中性后,滴加到上述反应液中,再周NMM调节pH至7.5-9.0,然后室温下进行反应。
4a中AA为甘氨酰基;4b中AA为L-丙氨酰基;4c中AA为L-缬氨酰基;4d中AA为L-异亮氨酰基;4e中AA为L-亮氨酰基;4f中AA为L-苯丙氨酰基;4g中AA为L-色氨酰基;4h中AA为L-酪氨酰基;4i中AA为L-丝氨酰基;4j中AA为L-天冬酰胺酰基;4k中AA为L-谷氨酰胺酰基;41中AA为L-苏氨酰基;4m中AA为L-天冬氨酰基;4n中AA为L-谷氨酰基;4o中AA为L-赖氨酰基;4p中AA为L-精氨酰基。
本发明还提供了制备(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰氨基酸(5a-p)的方法,即从(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰氨基酸苄酯(4a-p)制备(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰氨基酸(5a-p),具体包括如下步骤:
将4a-p溶于甲醇,在钯/碳和甲酸存在下,与氢气反应,得到5a-p。
5a中AA为甘氨酰基;5b中AA为L-丙氨酰基;5c中AA为L-缬氨酰基;5d中AA为L-异亮氨酰基;5e中AA为L-亮氨酰基;5f中AA为L-苯丙氨酰基;5g中AA为L-色氨酰基;5h中AA为L-酪氨酰基;5i中AA为L-丝氨酰基;5j中AA为L-天冬酰胺酰基;5k中AA为L-谷氨酰胺酰基;51中AA为L-苏氨酰基;5m中AA为L-天冬氨酰基;5n中AA为L-谷氨酰基;5o中AA为L-赖氨酰基;5p中AA为L-精氨酰基。
本发明还提供了(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-羧酸(3)作为制备治疗血栓性疾病药物的应用。
本发明还提供了(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰氨基酸(5a-p)作为制备治疗血栓性疾病药物的应用。
本发明方法的合成路线为:
其中,i-v是每个步骤的反应条件。i)多聚磷酸、苯甲醇(75℃);ii)二氯甲烷和三氟醋酸(室温);iii)Pd/C、H2、THF/甲醇;iv)HOBt、DCC和氨基酸苄酯(冰浴);v)Pd/C、H2、甲醇。
5a中AA为甘氨酰基;5b中AA为L-丙氨酰基;5c中AA为L-缬氨酰基;5d中AA为L-异亮氨酰基;5e中AA为L-亮氨酰基;5f中AA为L-苯丙氨酰基;5g中AA为L-色氨酰基;5h中AA为L-酪氨酰基;5i中AA为L-丝氨酰基;5j中AA为L-天冬酰胺酰基;5k中AA为L-谷氨酰胺酰基;51中AA为L-苏氨酰基;5m中AA为L-天冬氨酰基;5n中AA为L-谷氨酰基;5o中AA为L-赖氨酰基;5p中AA为L-精氨酰基。
本发明通过将5-甲酰水杨酸甲酯与L-色氨酸苄酯反应,并将所得中间体进行氨基酸修饰,得到了一系列(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰氨基酸衍生物,通过对这些衍生物的抗血小板凝血活性和抗血栓活性的研究,证实了这些衍生物在抗血小板凝集作用和抗血栓作用中的应用。
具体实施方式
下面结合实施例对本发明作进一步说明,应该理解的是,这些实施例仅用于例证的目的,决不限制本发明的保护范围。
实施例1制备5-甲酰水杨酸甲酯
称1.660g 5-甲酰水杨酸于微波反应罐中,加入25ml甲醇及1滴管浓H28O4,于微波反应器中90℃反应2h,利用TLC监测至原料斑点消失,停止反应降至室温后,将反应液转移至100ml茄形瓶中,用浓氨水调PH值至7-8,将反应液减压浓缩至干后,加大量乙酸乙酯溶解,乙酸乙酯层依次用饱和NaHCO3水溶液、饱和NaCl水溶液各洗三遍,然后用无水Na2SO4干燥2h,过滤、减压浓缩至干,于室温放置过夜即有晶体析出,得1.635g目标化合物,为淡黄色针状晶体,产率90.8%。ESI/MS(m/e):181[M+H]+。
实施例2制备L-色氨酸苄酯(1)
称取15.0g多聚磷酸于500ml茄形瓶中,加入80ml苯甲醇,使其在油浴50℃中溶解,待溶液温度上升至75℃后,称取10gL-色氨酸加入其中,75℃下反应48h,利用TLC监测至原料斑点消失,停止反应降温后,在冰浴搅拌下往反应瓶中倒入400ml无水乙醚,此时有白色固体析出,搅拌过夜后将之过滤,白色固体用200ml乙酸乙酯和10ml水悬浮,用三乙胺调溶液PH值至8左右,溶液变为澄清状,静置分液,分离的酯层依次用饱和NaHCO3水溶液、饱和NaCl水溶液各洗三遍,乙酸乙酯层用无水Na2SO4干燥2h,过滤、减压浓缩至干,得12.85g目标化合物,为类白色固体,产率89.2%。ESI/MS(m/e):295[M+H]+.
实施例3制备(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-羧酸苄酯(2)
往250ml茄形瓶中加入100ml CH2Cl2及10ml TFA,搅拌均匀后称取11.76g(40mmol)L-色氨酸苄酯(1)和7.92g(44mmol)5-甲酰水杨酸甲酯加入其中,数分钟后反应液变为微红色,2天后反应液变为黑色,利用TLC监测至原料斑点消失,在冰浴搅拌下缓慢滴加浓氨水将反应液调pH值至8左右,将反应液静置分液,将分离的CH2Cl2层依次用饱和NaHCO3水溶液、饱和NaCl水溶液各洗三遍,CH2Cl2层用无水Na2SO4干燥2h,过滤、减压浓缩至干,得黄色泡状物先经硅胶柱层析纯化(石油醚/乙酸乙酯=3/1),再经乙酸乙酯重结晶得6.34g目标化合物,为无色固体,产率34.8%,通过二维谱确定为1R,3S构型。Mp:81-82℃;[α]D 25=-27.2(c=0.65,CH3OH);IR(KBr):3348,3285,2957,2897,1730,1672,1489,1446,1381,1306,1213,1103,1012,842,799,750,702cm-1;ESI/MS(m/e):457[M+H]+;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.560(s,1H),10.501(s,1H),7.705-6.960(m,12H),5.325(s,1H),5.134(s,2H),3.923(t,J=5.1Hz,1H),3.853(s,3H),3.127(dd,J=15.3Hz,J=5.4Hz,1H),3.031(dd,J=9.6Hz,J=3.0Hz,1H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.82,169.68,159.80,136.63,136.51,136.36,134.72,129.92,128.81,128.32,127.93,127.01,121.37,118.90,118.18,117.71,112.88,111.51,106.82,65.97,53.57,52.91,52.87,24.99.
实施例4制备(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-羧酸(3)
将2.0g(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-羧酸苄酯(2)溶于30ml甲醇中,加入400mg Pd/C,反应液先用真空水泵抽走空气,然后通入氢气,如此反复3次,室温下反应过夜,利用TLC监测至原料斑点消失,常压过滤反应液,将反应液减压浓缩至干得1.486g目标化合物,为类黄色固体,产率92.6%。Mp:100-102℃;[α]D 25=-3.45(c=0.55,CH3OH);IR(KBr):3391,3186,3061,2953,2851,1680,1593,1493,1443,1379,1304,1215,1090,839,797,743cm-1;ESI-MS(m/e):365[M-H]-;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.717(s,1H),7.723(s,1H),7.452(dd,J=17.4Hz,J=8.1Hz,2H),7.258(d,J=7.8Hz,1H),7.067(t,J=7.8Hz,1H),6.996(d,J=8.7Hz,2H),5.529(s,1H),3.845(s,3H),3.673(t,J=6.3Hz,1H),3.110(dd,J=15.3Hz,J=6.9Hz,1H),2.977(dd,J=15.3Hz,J=7.2Hz,1H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.25,169.41,160.11,136.79,136.71,136.64,130.82,126.76,121.69,119.04,118.38,117.81,113.27,111.63,107.75,107.72,53.69,52.67,48.98,24.24.
实施例5制备(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰氨基酸苄酯(4a-p)的通法
称取1.098g(3mmol)(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-羧酸(3)于100ml茄形瓶中,用少量无水四氢呋喃(THF)将之溶解后,在冰浴搅拌下依次加入486mg(3.6mmol)1-羟基苯并三唑(HOBt)及768mg(3.6mmol)二环己基碳二亚胺(DCC),活化30min后,称取AA-OBzl(3.6mmol)于25ml小三角瓶中,用无水四氢呋喃(THF)悬浮后,用N-甲基吗啉(NMM)调PH至中性,然后将悬浮液滴加至反应液中,最后用NMM调反应液PH值至8左右,室温下反应过夜,利用TLC监测至原料斑点消失后,过滤除去二环己基脲(DCU),将滤液减压浓缩至干后用乙酸乙酯溶解,然后再次过滤除去DCU,滤液层依次用饱和NaHCO3水溶液、饱和NaCl水溶液各洗三遍,乙酸乙酯层用无水Na2SO4干燥,过滤、减压浓缩至干,得到的黄色泡状物经硅胶柱层析纯化(氯仿/甲醇=250/1-100/1),得到4a-p,为类白色固体。
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰甘氨酸苄酯(4a)
产量:583mg(37.9%)。Mp:85-86℃;[α]D 25=-25.3(c=0.85,CH3OH);IR(KBr):3316,2930,2851,1744,1672,1514,1441,1310,1090,841,797,745,696cm-1;ESI/MS(m/e):514[M+H]+;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.694(s,1H),8.372(s,1H),7.642-6.972(m,12H),5.246(s,1H),5.130(s,2H),3.940(s,2H),3.838(s,3H),3.548(m,1H),2.977(dd,J=15.3Hz,J=4.8Hz,1H),2.817(dd,J=15.3Hz,J=8.4Hz,1H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.66,170.26,169.71,159.71,136.58,136.43,136.34,134.64,134.49,134.45,129.84,127.16,121.40,118.85,118.15,117.70,112.79,111.51,108.32,66.32,53.38,52.89,52.26,33.78;24.97.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-丙氨酸苄酯(4b)
产量:650mg(41.1%)。Mp:79-80℃;[α]D 25=-32.4(c=0.45,CH3OH);IR(KBr):3374,2953,2897,1740,1676,1517,1452,1306,1211,1090,844,797,741,696cm-1;ESI/MS(m/e):528[M+H]+;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.745(s,1H),8.315(d,J=6.9Hz,1H),7.614-6.972(m,12H),5.219(s,1H),5.131(dd.,J=15.3Hz,J=12.6Hz,2H),4.363(d,J=7.2Hz,1H),3.831(s,3H),3.510(dd,J=8.7Hz,J=4.5Hz,1H),2.937(dd,J=15.3Hz,J=4.5Hz,1H),2.716(dd,J=15.3Hz,J=9.3Hz,1H),1.333(d,J=7.2Hz,3H);13C-NMR(75MHz,DMSO-d6):δ/ppm=176.39,173.29,173.21,172.84,136.72,136.55,134.66,134.58,134.43,128.44,127.16,127.12,126.88,121.41,118.88,118.08,111.58,111.53,108.28,65.96,53.28,51.76,49.93,48.08,47.98,25.47,20.85,17.34.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-缬氨酸苄酯(4c)
产量:352mg(21.1%)。Mp:78-80℃;[α]D 25=-68.4(c=0.55,CH3OH);IR(KBr):3367,3287,2961,2932,1738,1676,1516,1447,1307,1211,1090,839,795,744,698cm-1;ESI/MS(m/e):556[M+H]+;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.739(s,1H),10.530(s,1H),8.095(d,J=8.1Hz,1H),7.626-6.965(m,12H),5.194(s,1H),5.138(dd.,J=20.4Hz,J=12.6Hz,2H),4.225(d,J=5.7Hz,1H),3.824(s,3H),3.569(dd,J=8.1Hz,J=5.1Hz,1H),2.940(dd,J=15.3Hz,J=4.5Hz,1H),2.711(dd,J=15.3Hz,J=8.7Hz,1H),2.149-2.060(m,1H),0.883(d,J=6.3Hz,6H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.16,171.70,169.68,159.62,136.38,136.32,134.69,134.54,134.48,129.67,128.59,127.12,121.39,118.85,118.09,117.68,112.81,111.51,108.25,72.70,60.63,57.73,53.29,51.98,30.35,25.79,25.28,24.91.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-异亮氨酸苄酯(4d)
产量:352mg(22.6%)。Mp:77-79℃;[α]D 25=-36.2(c=0.6,CH3OH);IR(KBr):3385,3291,2965,2878,1736,1676,1508,1441,1301,1209,1090,843,797,743,696cm-1;ESI/MS(m/e):570[M+H]+;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.736(s,1H),10.517(s,1H),8.111(d,J=6.6Hz,1H),7.629-6.972(m,12H),5.195(s,1H),5.140(dd.,J=21.3Hz,J=12.0Hz,2H),4.298(s,1H),3.829(s,3H),3.571(s,1H),2.945(d,J=12.3Hz,1H),2.752-2.677(m,1H),1.838(s,1H),1.393(s,1H),1.145(dd,J=34.8Hz,J=7.2Hz,1H),0.841(s,6H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.53,171.69,169.68,159.66,136.39,136.31,134.52,134.49,129.71,128.59,128.53,127.12,121.39,118.86,118.10,117.70,112.80,111.52,108.27,66.40,56.79,56.70,53.32,52.88,51.97,36.81,25.31,15.93,11.61.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-亮氨酸苄酯(4e)
产量:405mg(23.7%)。Mp:74-75℃;[α]D 25=-61.1(c=0.6,CH3OH);IR(KBr):3377,3277,2957,2872,1740,1676,1616,1510,1456,1213,1090,847,797,743,696cm-1;ESI/MS(m/e):570[M+H]+;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.707(s,1H),10.568(s,1H),8.245(d,J=6.9Hz,1H),7.623-6.997(m,12H),5.191(s,1H),5.124(s,1H),4.351(s,1H),3.834(s,3H),3.549(s,1H),2.937(d,J=11.7Hz,1H),2.756(d,J=9.3Hz,1H),1.632-1.600(m,3H),0.869(d,J=9.6Hz,6H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.50,172.72,169.68,159.67,136.40,134.56,134.48,129.75,128.89,128.53,128.31,127.12,121.37,118.85,118.08,117.71,112.79,111.52,108.15,66.41,53.30,52.88,52.06,50.76,39.12,25.27,24.75,23.17,21.81.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-苯丙氨酸苄酯(4f)
产量:450mg(24.9%)。Mp:79-80℃;[α]D 25=-25.5(c=0.65,CH3OH);IR(KBr):3366,2953,2893,1740,1672,1492,1440,1301,1213,1090,843,797,741,700cm-1;ESI/MS(m/e):604[M+H]+;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.640(s,1H),8.300(d,J=7.5Hz,1H),7.592-6.957(m,17H),5.100(s,1H),5.061(s,2H),4.558(t,J=6.6Hz,1H),3.847(s,3H),3.517(t,J=6.3Hz,1H),3.132-2.983(m,2H),2.897(dd,J=15.0Hz,J=4.8Hz,1H),2.764(dd,J=15.3Hz,J=7.8Hz,1H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.27,171.72,169.70,159.71,137.42,136.40,136.32,136.20,134.42,134.39,129.77,129.61,128.84,128.76,128.51,128.35,127.09,121.37,118.84,118.09,117.69,112.77,111.52,108.10,66.52,53.90,53.23,52.88,52.35,36.90,24.70.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-色氨酸苄酯(4g)
产量:785mg(40.8%)。Mp:96-97℃;[α]D 25=-17.9(c=0.7,CH3OH);IR(KBr):3397,3292,2953,2849,1736,1672,1618,1510,1456,1301,1213,1090,845,797,743,696cm-1;ESI/MS(m/e):643[M+H]+;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.907(s,1H),10.701(s,1H),10.516(s,1H),8.252(d,J=6.9Hz,1H),7.551-7.001(m,17H),5.124(s,1H),5.045(s,2H),4.611(t,J=6.6Hz,1H),3.814(s,3H),3.571(s,1H),3.206(s,2H),2.936(d,J=11.7Hz,1H),2.737(d,J=8.7Hz,1H);13C-NMR(75MHz,DMSO-d6):δ/ppm=174.51,171.65,169.42,159.06,136.64,136.45,135.67,135.15,134.82,133.09,128.90,128.64,128.44,128.24,127.36,121.91,121.76,119.26,119.10,118.71,118.15,118.05,113.45,111.41,111.30,109.82.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-酪氨酸苄酯(4h)
产量:650mg(35.0%)。Mp:88-89℃;[α]D 25=-34.4(c=0.4,CH3OH∶THF=1∶2);IR(KBr):3335,2955,2885,1744,1672,1597,1514,1441,1304,1213,1092,833,797,743,700cm-1;ESI/MS(m/e):620[M+H]+;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.681(s,1H),8.215(d,J=7.2Hz,1H),7.600-6.630(m,16H),5.115(s,1H),5.082(s,2H),4.464(t,J=6.3Hz,1H),3.836(s,3H),3.500(t,J=6.3Hz,1H),2.939(s,2H),2.879(d,J=5.1Hz,1H),2.737(dd,J=15.3Hz,J=8.1Hz,1H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.31,171.82,169.71,159.77,156.54,136.55,136.40,136.35,136.22,135.67,134.60,134.45,134.32,130.57,128.83,128.50,128.35,127.29,127.16,127.12,121.40,118.86,118.10,117.73,115.58,112.79,111.53,108.24,,108.21,66.44,54.32,53.31,52.88,52.28,36.27,24.78.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-丝氨酸苄酯(4i)
产量:450mg(27.6%)。Mp:85-86℃;[α]D 25=-14.3(c=0.95,CH3OH);IR(KBr):3379,3277,2953,2851,1740,1672,1514,1441,1306,1213,1090,845,797,743,696cm-1;ESI/MS(m/e):544[M+H]+;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.729(s,1H),10.517(s,1H),8.236(d,J=7.8Hz,1H),7.628-6.973(m,12H),5.234(s,1H),5.148(s,2H),4.443(s,1H),3.832(s,3H),3.717(dd,J=20.7Hz,J=4.5Hz,1H),3.566(dd,J=8.1Hz,J=4.8Hz,1H),2.983(dd,J=15.6Hz,J=4.5Hz,1H),2.751(dd,J=15.3Hz,J=9.3Hz,1H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.37,170.82,169.71,159.67,136.58,136.45,136.40,134.59,134.44,134.37,129.78,128.44,127.18,127.14,121.44,118.88,118.14,117.70,112.79,111.58,108.48,66.45,61.53,55.03,53.42,52.89,51.95,25.07.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-天冬酰氨苄酯(4j)
产量:685mg(40.1%)。Mp:84-85℃;[α]D 25=-75.5(c=0.65,CH3OH);IR(KBr):3370,2953,2849,1740,1674,1510,1441,1310,1209,1090,845,797,746,696cm-1;ESI/MS(m/e):571[M+H]+;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.694(s,1H),10.534(s,1H),8.414(d,J=7.8Hz,1H),7.616-6.969(m,14H),5.192(s,1H),5.110(s,2H),4.690(s,1H),3.829(s,3H),3.543(s,1H),2.950(dd,J=15.0Hz,J=4.5Hz,1H),2.791(dd,J=15.0Hz,J=8.4Hz,1H),2.637(d,J=4.8Hz,1H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.08,173.01,171.64,169.73,159.69,136.55,136.43,134.62,134.47,134.34,129.72,128.82,128.38,128.05,127.20,127.16,121.41,118.86,118.12,117.71,112.78,111.54,108.33,66.46,55.48,52.89,52.20,49.06,36.90,24.78.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-谷氨酰氨苄酯(4k)
产量:300mg(17.1%)。Mp:111-112℃;[α]D 25=-33.6(c=1.15,CH3OH);IR(KBr):3277,3196,2953,2927,1736,1676,1616,1492,1440,1308,1209,1090,843,795,743,698cm-1;ESI/MS(m/e):585[M+H]+;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.723(s,1H),10.501(s,1H),8.288(d,J=7.2Hz,1H),7.612-6.798(m,14H),5.218(s,1H),5.124(s,2H),4.305(dd,J=8.7Hz,J=4.8Hz,1H),3.828(s,3H),3.537-3.494(m,1H),2.947(dd,J=15.3Hz,J=4.5Hz,1H),2.711(dd,J=15.3Hz,J=9.0Hz,1H),2.158(t,J=7.2Hz,2H),2.067-1.956(m,1H),1.920-1.869(m,1H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.81,173.52,172.12,169.69,159.69,136.38,134.55,134.44,129.72,128.88,128.51,128.29,127.10,121.42,118.88,118.09,117.67,112.76,111.53,108.25,66.44,53.29,52.89,52.15,51.87,31.58,26.86,25.39.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-苏氨酸苄酯(41)
产量:645mg(38.6%)。Mp:85-86℃;[α]D 25=-22.7(c=1.05,CH3OH);IR(KBr):3397,3302,2947,2850,1741,1676,1492,1447,1308,1211,1090,841,797,745,696cm-1;ESI/MS(m/e):558[M+H]+;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.720(s,1H),8.039(d,J=8.7Hz,1H),7.652-6.974(m,12H),5.235(s,1H),5.141(s,2H),4.349(d,J=3.0Hz,1H),4.210(t,J=3.0Hz,1H),3.833(s,3H),3.606(t,J=6.3Hz,1H),3.013(dd,J=15.3Hz,J=4.8Hz,1H),2.804(dd,J=15.3Hz,J=8.4Hz,1H),1.107(d,J=6.3Hz,3H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.56,170.95,169.70,159.73,136.59,136.44,136.40,134.70,134.55,134.23,129.74,128.84,128.43,128.13,127.21,127.17,121.44,118.87,118.18,117.76,112.84,111.52,108.50,66.43,58.13,55.35,53.52,52.89,52.32,24.81,20.80.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-天冬氨酸双苄酯(4m)
产量:350mg(17.7%)。Mp:75-76℃;[α]D 25=-16.6(c=0.9,CH3OH);IR(KBr):3377,2953,2926,1736,1676,1618,1496,1440,1213,1090,843,797,743,696cm-1;ESI/MS(m/e):662[M+H]+;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.684(s,1H),10.512(s,1H),8.479(d,J=7.8Hz,1H),7.625-6.987(m,17H),5.198(s,1H),5.099(s,2H),5.075(s,2H),4.795(t,J=5.7Hz,1H),3.818(s,3H),3.536(t,J=6.3Hz,1H),3.000-2.833(m,3H),2.771(dd,J=15.3Hz,J=7.8Hz,1H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.19,170.92,170.49,169.69,159.72,136.58,136.42,136.24,136.16,134.58,134.41,129.80,128.84,128.49,128.37,128.22,127.12,121.40,118.86,118.10,117.72,112.81,111.53,108.20,66.81,66.38,52.31,52.87,52.16,48.97,36.15,24.99.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-谷氨酸双苄酯(4n)
产量:450mg(22.2%)。Mp:101-102℃;[α]D 25=-21.1(c=0.8,CH3OH);IR(KBr):3370,2953,2926,2849,1736,1676,1618,1492,1449,1211,1090,847,797,743,696cm-1;ESI/MS(m/e):676[M+H]+;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.710(s,1H),10.492(s,1H),8.283(d,J=7.8Hz,1H),7.625-6.947(m,17H),5.207(s,1H),5.122(s,2H),5.074(s,2H),4.383(s,1H),3.813(s,3H),3.521(s,1H),2.944(d,J=12.6Hz,1H),2.719(dd,J=15.3Hz,J=8.7Hz,1H),2.463(s,2H),2.088(d,J=6.9Hz,1H),1.968(d,J=6.9Hz,1H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.58,172.50,171.86,169.69,159.61,136.56,136.33,134.63,134.48,129.70,128.87,128.53,128.46,128.37,128.32,127.14,121.40,118.87,118.08,117.64,112.75,111.53,108.18,66.55,66.01,53.30,52.86,51.96,51.61,30.31,26.37,25.33.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-N-苄氧羰基-L-赖氨酸苄酯(4o)
产量:450mg(39.5%)。Mp:84-85℃;[α]D 25=-45.9(c=0.55,CH3OH);IR(KBr):3300,2951,2864,1701,1676,1514,1440,1213,1090,843,797,741,696cm-1;ESI/MS(m/e):719[M+H]+;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.708(s,1H),10.507(s,1H),8.312(s,1H),8.221(d,J=7.2Hz,1H),7.620-6.993(m,17H),5.205(s,1H),5.128(s,2H),4.996(s,2H),4.275(t,J=6.9Hz,1H),3.822(s,3H),3.540(dd,J=8.1Hz,J=4.8Hz,1H),2.978(s,2H),2.728(dd,J=13.5Hz,J=8.1Hz,1H),1.709(q,J=7.5Hz,2H),1.346(d,J=24.6Hz,J=6.9Hz,4H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.50,172.34,169.70,159.63,156.58,137.71,136.40,134.58,134.46,129.73,128.87,128.80,128.52,128.32,128.19,128.17,127.12,121.40,118.87,118.10,117.67,112.73,111.53,108.23,66.40,65.60,53.30,52.87,52.41,51.94,30.89,29.47,25.34,23.11.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-N-硝基-L-精氨酸苄酯(4p)
产量:675mg(34.2%)。Mp:117-118℃;[α]D 25=-56.5(c=0.45,CH3OH);IR(KBr):3275,3237,2953,2895,1740,1673,1518,1493,1441,1213,1090,845,797,743,696cm-1;ESI/MS(m/e):658[M+H]+;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.715(s,1H),10.501(s,1H),8.308(s,1H),8.278(d,J=7.2Hz,1H),7.606-6.968(m,12H),5.210(s,1H),5.128(s,2H),4.330(s,1H),3.828(s,3H),3.540(t,J=4.8Hz,1H),3.155(s,2H),2.946(dd,J=15.0Hz,J=3.9Hz,1H),2.727(dd,J=15.0Hz,J=9.0Hz,1H),1.820-1.634(m,2H),1.540(s,2H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.62,173.55,172.17,169.69,159.61,136.55,136.40,136.33,134.58,134.44,129.71,128.88,128.54,128.32,127.10,121.42,118.88,118.09,117.68,112.79,111.54,108.21,79.62,66.51,53.32,52.89,52.24,52.14,51.96,28.42,25.39.
实施例6制备(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰氨基酸(5a-p)的通法
称取200mg(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰氨基酸苄酯(4a-p)于50ml茄形瓶中,用10ml甲醇溶解后,加入40mg Pd/C及5-6滴甲酸,先用真空水泵抽走反应瓶中的空气,然后通入氢气,如此反复三次,最后保持通氢气状态反应24h,利用TLC监测至原料斑点消失后,减压过滤,将滤液减压浓缩至干得5a-p,为黄色油状物。黄色油状物在甲醇/乙醚(1/10)中析晶,得到产物。
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰甘氨酸(5a)
产量:85mg(51.5%)。Mp:96-97℃;[α]D 25=-93.3(c=0.45,CH3OH);IR(KBr):3375,3217,3063,2953,2859,1678,1593,1493,1443,1308,1215,1092,841,797,745cm-;ESI-MS(m/e):422[M-H]-;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.724(s,1H),8.178(s,1H),7.639(s,1H),7.458(s,2H),7.264(s,1H),7.008(s,3H),5.277(s,1H),4.056(s,1H),3.840(s,3H),3.790(s,2H),3.007(d,J=12.6Hz,1H),2.828(d,J=12.6Hz,1H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.08,171.65,169.64,159.75,136.52,136.43,134.14,133.94,130.02,127.08,121.46,118.89,118.20,117.73,112.87,111.53,108.33,65.39,53.43,52.90,52.10,24.86.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-丙氨酸(5b)
产量:86mg(51.9%)。Mp:120-122℃;[α]D 25=-70.7(c=0.45,CH3OH);IR(KBr):3379,3221,3059,2953,2882,1678,1595,1493,1449,1308,1217,1092,841,797,745cm-1;ESI-MS(m/e):436[M-H]-;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.753(s,1H),8.165(d,J=7.2Hz,1H),7.617(s,1H),7.421(dd,J=12.9Hz,J=7.5Hz,2H),7.277(d,J=7.5Hz,1H),7.064(t,J=7.5Hz,1H),6.986(d,J=8.4Hz,2H),5.258(s,1H),4.213(d,J=6.9Hz,1H),3.834(s,3H),3.540(dd,J=8.4Hz,J=4.5Hz,1H),3.007(dd,J=15.3Hz,J=4.5Hz,1H),2.758(dd,J=15.0Hz,J=9.0Hz,1H),1.291(d,J=6.9Hz,3H);13C-NMR(75MHz,DMSO-d6):δ/ppm=174.37,172.49,169.60,159.70,136.52,136.46,134.14,133.85,129.99,127.03,121.49,118.93,118.16,117.70,112.93,111.55,108.27,53.40,52.89,51.76,47.83,25.14,17.78.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-缬氨酸(5c)
产量:95mg(56.7%)。Mp:137-138℃;[α]D 25=-50.9(c=0.5,CH3OH);IR(KBr):3377,3291,3063,2963,2876,1678,1593,1493,1443,1308,1215,1090,839,797,745cm-1;ESI-MS(m/e):464[M-H]-;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.741(s,1H),10.509(s,1H),7.940(d,J=8.1Hz,1H),7.652(s,1H),7.454(t,J=8.4Hz,2H),7.277(d,J=7.5Hz,1H),7.050(t,J=7.8Hz,1H),6.991(d,J=7.2Hz,2H),5.253(s,1H),4.160(t,J=6.9Hz,1H),3.837(s,3H),3.607(s,1H),3.022(dd,J=12.6Hz,J=7.2Hz,1H),2.779(dd,J=14.7Hz,J=8.7Hz,1H),2.080(d,J=6.0Hz,1H),0.899(d,J=5.4Hz,6H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.26,173.01,169.64,159.82,136.62,136.34,134.35,133.86,129.91,127.13,121.46,118.90,118.17,117.78,113.01,111.59,108.32,57.47,53.58,52.88,52.23,30.49,25.08,19.59,18.46.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-异亮氨酸(5d)
产量:115mg(68.3%)。Mp:108-109℃;[α]D 25=-43.5(c=0.55,CH3OH);IR(KBr):3383,3202,3061,2965,2876,1678,1593,1493,1443,1383,1306,1215,1090,841,797,745cm-1;ESI-MS(m/e):478[M-H]-;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.751(s,1H),8.205(s,1H),7.946(d,J=7.2Hz,1H),7.630(s,1H),7.445(t,J=8.4Hz,2H),7.271(d,J=7.5Hz,1H),7.050(t,J=7.5Hz,1H),6.991(d,J=7.5Hz,2H),5.213(s,1H),4.174(d,J=4.5Hz,1H),3.828(s,3H),3.569(s,1H),3.001(d,J=11.4Hz,1H),2.758(dd,J=14.7Hz,J=8.7Hz,1H),1.806(s,1H),1.238-1.171(m,J=5.4Hz,1H),0.868(d,J=5.4Hz,6H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.30,172.88,169.61,159.68,136.41,136.33,134.34,134.03,129.85,127.10,121.43,118.88,118.16,117.73,112.91,111.53,108.34,56.57,53.47,52.89,52.15,37.07,25.25,25.02,16.05,11.85.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-亮氨酸(5e)
产量:105mg(62.4%)。Mp:115-116℃;[α]D 25=-49.5(c=0.55,CH3OH);IR(KBr):3368,3217,3061,2957,2872,1680,1591,1493,1443,1310,1213,1092,841,797,745cm-1;ESI-MS(m/e):478[M-H]-;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.708(s,1H),8.203(s,1H),8.065(d,J=7.8Hz,1H),7.627(s,1H),7.441(t,J=8.4Hz,2H),7.266(d,J=7.8Hz,1H),7.056(t,J=7.5Hz,1H),6.990(d,J=8.4Hz,2H),5.207(s,1H),4.227(d,J=7.8Hz,1H),3.836(s,3H),3.557(t,J=5.1Hz,1H),2.996(dd,J=15.3Hz,J=4.5Hz,1H),2.777(dd,J=15.0Hz,J=9.0Hz,1H),1.634-1.513(m,J=19.5Hz,J=9.0Hz,J=6.9Hz,3H),0.873(dd,J=13.5Hz,J=6.0Hz,6H);13C-NMR(75MHz,DMSO-d6):δ/ppm=174.41,172.95,169.64,163.81,159.72,136.44,136.35,134.34,134.19,129.88,127.12,121.40,118.87,118.13,117.73,112.89,111.52,108.23,53.46,52.87,52.21,50.66,25.02,24.83,23.30,21.94.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-苯丙氨酸(5f)
产量:98mg(57.6%)。Mp:115-116℃;[α]D 25=-54.5(c=0.5,CH3OH);IR(KBr):3389,3277,3061,2953,2859,1678,1595,1493,1443,1306,1215,1090,841,797,745,700cm-1;ESI-MS(m/e):512[M-H]-;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.787(s,1H),10.682(s,1H),10.424(s,1H),8.336(s,1H),7.545(s,1H),7.436(dd,J=19.2Hz,J=7.2Hz,2H),7.221(d,J=11.4Hz,1H),7.062(t,J=6.3Hz,1H),7.085-6.764(m,J=10.8Hz,J=7.2Hz,7H),5.237(s,1H),4.221(d,J=7.8Hz,1H),3.829(s,3H),3.591(t,J=6.9Hz,1H),3.457(dd,J=17.1Hz,J=5.4Hz,1H),3.314(dd,J=15.0Hz,J=9.0Hz,1H),2.817-2.795(m,2H);13C-NMR(75MHz,DMSO-d6):δ/ppm=174.08,171.13,169.65,159.53,136.49,136.35,134.44,134.40,129.70,128.88,128.49,128.21,127.26,121.39,118.81,118.20,117.59,112.79,111.54,108.46,59.15,53.42,52.88,49.82,46.46,29.15,24.77.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-色氨酸(5g)
产量:58mg(33.7%)。Mp:115-116℃;[α]D 25=-68.3(c=0.7,CH3OH);IR(KBr):3395,3229,3059,2953,2855,1678,1595,1443,1308,1217,1092,839,797,745cm-1;ESI-MS(m/e):551[M-H]-;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.947(s,1H),10.893(s,1H),10.612(s,1H),8.161(s,1H),7.636(s,1H),7.508(t,J=8.1Hz,2H),7.357-7.287(m,3H),7.169(s,1H),7.098-6.912(m,6H),5.472(s,1H),4.512(s,1H),3.823(s,3H),3.173(t,J=5.4Hz,3H),2.848(dd,J=15.3Hz,J=9.0Hz,1H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.40,171.13,169.43,160.15,136.98,136.74,136.56,127.71,126.73,124.21,121.78,121.40,119.13,118.85,118.73,118.30,117.88,113.23,111.86,109.87,107.82,53.68,53.43,52.91,51.65,27.46,24.61.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-酪氨酸(5h)
产量:89mg(52.1%)。Mp:134-135℃;[α]D 25=-28.3(c=0.5,CH3OH);IR(KBr):3364,3291,3061,2953,2859,1678,1595,1514,1445,1308,1219,1092,837,795,745cm-1;ESI-MS(m/e):528[M-H]-;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.683(s,1H),8.201(s,1H),8.009(d,J=7.2Hz,1H),7.611(s,1H),7.454(d,J=7.2Hz,1H),7.377(d,J=8.4Hz,1H),7.268(d,J=7.2Hz,1H),7.079-6.996(m,5H),6.680(d,J=7.2Hz,2H),5.120(s,1H),4.340(s,1H),3.840(s,3H),3.513(s,1H),2.977-2.868(m,3H),2.788(dd,J=15.0Hz,J=8.4Hz,1H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.39,172.76,169.67,159.75,156.36,136.58,136.42,134.27,134.00,130.63,129.82,127.86,127.14,127.10,121.43,118.87,118.16,117.71,115.44,112.84,111.53,108.27,54.07,53.40,52.90,52.43,36.33,24.53.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-丝氨酸(5i)
产量:86mg(51.5%)。Mp:125-126℃;[α]D 25=-1.5(c=0.55,CH3OH∶THF=1∶2);IR(KBr):3383,3298,3063,2955,2853,1678,1595,1493,1447,1310,1215,1090,841,797,746cm-1;ESI-MS(m/e):452[M-H]-;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.728(s,1H),8.173(s,1H),8.081(d,J=7.5Hz,1H),7.632(s,1H),7.460(t,J=9.0Hz,2H),7.279(d,J=8.1Hz,1H),7.066(t,J=7.5Hz,1H),6.991(d,J=8.4Hz,2H),5.257(s,1H),4.260(s,1H),3.834(s,3H),3.743(dd,J=10.8Hz,J=4.5Hz,1H),3.643(dd,J=10.2Hz,J=2.7Hz,1H),3.565(dd,J=8.1Hz,J=5.1Hz,1H),3.032(dd,J=15.3Hz,J=4.2Hz,1H),2.782(dd,J=15.0Hz,J=9.0Hz,1H);13C-NMR(75MHz,DMSO-d6):δ/ppm=172.77,172.25,169.65,159.73,136.50,136.44,134.22,133.93,129.93,127.10,121.48,118.91,118.20,117.73,112.88,111.53,108.48,54.75,53.47,52.90,51.98,48.97,24.85.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-天冬酰胺(5j)
产量:85mg(50.5%)。Mp:102-103℃;[α]D 25=-50.6(c=0.65,CH3OH);IR(KBr):3362,3204,3063,2955,2857,1676,1597,1493,1445,1310,1217,1092,841,795,746cm-1;ESI-MS(m/e):479[M-H]-;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.814(s,1H),10.597(s,1H),8.472(d,J=9.6Hz,1H),8.154(s,1H),7.667(s,1H),7.502-7.411(m,3H),7.286(d,J=7.8Hz,1H),7.091-6.952(m,4H),5.433(s,1H),4.532(s,1H),3.835(s,3H),3.164-3.100(m,2H),2.884(dd,J=17.5Hz,J=7.8Hz,1H),2.566(s,2H);13C-NMR(75MHz,DMSO-d6):δ/ppm=172.91,171.71,169.40,163.46,160.10,136.89,136.75,136.59,130.87,126.69,121.84,119.15,118.30,117.84,113.30,111.71,107.81,53.55,52.94,51.72,48.98,36.88,24.27.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-谷氨酰胺(5k)
产量:96mg(56.7%)。Mp:116-117℃;[α]D 25=-40.7(c=1.05,CH3OH);IR(KBr):3347,3210,3063,2955,2864,1674,1595,1493,1308,1215,1092,841,797,745cm-1;ESI-MS(m/e):493[M-H]-;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.745(s,1H),8.213(s,1H),8.090(d,J=6.0Hz,1H),7.617(s,1H),7.463(d,J=7.2Hz,2H),7.277(d,J=7.5Hz,1H),7.050(d,J=7.8Hz,1H),6.988(d,J=7.5Hz,2H),6.785(s,2H),5.232(s,1H),4.153(s,1H),3.830(s,3H),3.498(s,1H),3.013(d,J=12.3Hz,1H),2.752(dd,J=15.0Hz,J=9.0Hz,1H),2.123(s,2H),1.985-1.828(m,2H);13C-NMR(75MHz,DMSO-d6):δ/ppm=174.01,173.76,172.93,169.67,159.67,136.58,136.46,134.37,134.22,129.80,127.10,121.44,118.90,118.16,117.71,112.84,111.53,108.41,53.44,52.90,52.12,51.96,31.74,27.47.25.19.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-苏氨酸(51)
产量:106mg(63.2%)。Mp:124-125℃;[α]D 25=-47.9(c=0.85,CH3OH);IR(KBr):3368,3283,3063,2976,2878,1678,1595,1493,1443,1308,1215,1090,839,795,745cm-1;ESI-MS(m/e):466[M-H]-;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.725(s,1H),8.201(s,1H),7.890(d,J=8.1Hz,1H),7.645(s,1H),7.465(t,J=6.0Hz,2H),7.270(d,J=7.8Hz,1H),7.060(t,J=4.5Hz,1H),6.998(d,J=8.1Hz,2H),5.248(s,1H),4.149(s,2H),3.833(s,3H),3.578(t,J=6.0Hz,1H),3.041(dd,J=15.6Hz,J=4.5Hz,1H),2.820(dd,J=15.3Hz,J=8.7Hz,1H),1.057(d,J=6.0Hz,3H);13C-NMR(75MHz,DMSO-d6):δ/ppm=172.96,172.54,169.64,159.74,136.60,136.44,134.39,133.94,129.87,127.14,121.45,118.88,118.22,117.78,112.91,111.51,108.54,65.39,57.65,53.58,52.91,52.40,24.72,20.90.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-天冬氨酸(5m)
产量:68mg(46.7%)。Mp:115-116℃;[α]D 25=-40.5(c=0.65,CH3OH);IR(KBr):3372,3063,2957,2859,1682,1593,1443,1310,1219,1090,839,795,745cm-;ESI-MS(m/e):480[M-H]-;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.733(s,1H),8.240(d,J=6.6Hz,1H),8.179(s,1H),7.629(s,1H),7.460(t,J=9.0Hz,2H),7.273(d,J=7.5Hz,1H),7.066(t,J=7.5Hz,1H),6.991(d,J=6.3Hz,2H),5.263(s,1H),4.380(s,1H),3.833(s,3H),3.039(d,J=12.3Hz,1H),2.801(dd,J=15.0Hz,J=8.7Hz,1H),2.602(s,2H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.05,172.59,172.06,169.60,159.82,136.58,136.47,133.82,133.35,130.11,127.01,121.54,118.95,118.22,117.76,112.98,111.57,108.30,53.50,52.90,52.05,48.84,37.96,24.70;Anal.Calcd for C24H23N3O8:C,59.87;H,4.82;N,8.73.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-谷氨酸(5n)
产量:82mg(56.7%)。Mp:118-119℃;[α]D 25=-13.1(c=0.45,CH3OH);IR(KBr):3364,3213,3065,2955,2874,1678,1593,1445,1308,1217,1090,837,795,746cm-1;ESI-MS(m/e):494[M-H]-;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.753(s,1H),8.240(s,1H),8.067(d,J=7.2Hz,1H),7.619(s,1H),7.452(s,2H),7.271(d,J=7.5Hz,1H),7.056(t,J=6.9Hz,1H),6.984(d,J=8.1Hz,2H),5.213(s,1H),4.165(s,1H),3.825(s,3H),3.489(s,1H),3.004(dd,J=15.0Hz,J=3.3Hz,1H),2.746(dd,J=15.0Hz,J=8.7Hz,1H),2.274(s,2H),1.897(m,J=7.2Hz,2H),;13C-NMR(75MHz,DMSO-d6):δ/ppm=174.45,173.69,172.77,169.65,159.68,136.41,134.40,134.10,129.81,127.11,121.42,118.88,118.17,117.71,112.86,111.52,108.40,53.47,52.88,52.05,51.90,30.48,27.29,25.09.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-赖氨酸(5o)
产量:85mg(61.8%)。Mp:117-118℃;[α]D 25=-50.1(c=0.8,CH3OH);IR(KBr):3364,3201,3063,2951,2868,1678,1587,1493,1445,1383,1319,1215,1092,839,795,746cm-1;ESI-MS(m/e):493[M-H]-;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.772(s,1H),8.295(s,3H),7.979(d,J=4.5Hz,1H),7.595(s,1H),7.451(t,J=9.0Hz,2H),7.275(d,J=7.2Hz,1H),7.057-6.999(m,3H),5.208(s,1H),4.053(s,1H),3.821(s,3H),3.460(s,1H),3.019(d,J=13.2Hz,1H),2.720(s,3H),1.715-1.091(m,6H);13C-NMR(75MHz,DMSO-d6):δ/ppm=174.32,172.47,169.60,159.63,136.43,136.32,134.50,134.23,129.77,127.14,121.42,118.86,118.17,117.75,112.92,111.52,108.59,53.57,52.88,52.13,38.85,31.64,27.13,25.25,22.54.
(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰-L-精氨酸(5p)
产量:81mg(46.9%)。Mp:122-124℃;[α]D 25=-49.5(c=0.9,CH3OH);IR(KBr):3333,3229,3065,2953,2878,1678,1595,1493,1445,1269,1217,1092,839,746,694cm-1;ESI-MS(m/e):521[M-H]-;1H-NMR(300MHz,DMSO-d6):δ/ppm=10.749(s,1H),8.172(s,3H),7.621(s,1H),7.455(t,J=9.9Hz,2H),7.280(d,J=8.1Hz,1H),7.065(t,J=7.5Hz,1H),6.997(d,J=8.7Hz,2H),5.267(s,1H),4.185(s,1H),3.851(s,3H),3.576(dd,J=7.8Hz,J=4.8Hz,1H),3.151(s,2H),3.030(dd,J=15.3Hz,J=4.5Hz,1H),2.779(dd,J=15.0Hz,J=9.0Hz,1H),1.758(t,J=6.3Hz,1H),1.650(t,J=7.2Hz,1H),1.523(s,2H);13C-NMR(75MHz,DMSO-d6):δ/ppm=173.79,172.77,169.60,163.71,159.74,136.61,136.51,136.45,130.01,127.01,121.52,118.95,118.19,117.74,112.94,111.56,108.22,65.38,53.47,52.90,52.03,51.94,28.88,25.10,15.62.
实施例75a-p抗血小板聚集活性评价
猪颈动脉取血,用3.8%枸橼酸钠(V枸橼酸钠∶V全血=1∶9)抗凝。1000g/min离心10分钟得富血小板血浆(PRP),再以3000g/min离心10分钟,得贫血小板血浆(PPP)。以ADP,PAF,TH为诱导剂(来源于SIGMA公司)诱导血小板聚集。母核(3)、(1R,3S)-1-(4-羟基-3-甲氧羰基)-1,2,3,4-四氢-β-咔啉-3-甲酰氨基酸(5a-p)均用生理盐水溶解。每个数据平行测6次。
表1为母核3及化合物5a-p对PAF和TH诱导的血小板聚集作用的影响。
表2为母核3及化合物5a-p对ADP诱导的血小板聚集作用的影响。
表1数据说明除母核3外,16个氨基酸修饰的目标化合物对PAF(血小板活化因子,终浓度1×10-6M)诱导的血小板聚集有抑制作用,母核3以及16个氨基酸修饰的目标化合物对TH(凝血酶,终浓度1×10-5M)诱导的血小板聚集具有明显抑制作用。
表2数据说明母核3以及16个氨基酸修饰的目标化合物对ADP(二磷酸腺苷,终浓度1×10-6M)诱导的血小板聚集基本无抑制作用。
通过数据还可以看到本发明经过氨基酸修饰后的目标化合物抑制PAF以及TH诱导的血小板聚集作用比母核抑制作用明显增强。
表1 3和5a-p对PAF和TH诱导的血小板聚集作用的影响(n=6)
表2 3和5a-p对ADP诱导的血小板聚集作用的影响(n=6)
实施例8抗血栓形成活性评价
使用前将5a-p配成0.33nM(纳摩尔,浓度单位)生理盐水溶液,用于体内的剂量为1nmol/kg,母核中间体2配成33nM生理盐水溶液,用于体内的剂量为100nmol/kg。将阳性药Asprin配成10g/l生理盐水溶液,即55.5mM(毫摩尔,浓度单位)的溶液,用于体内的剂量为167mmol/kg。空白对照为生理盐水,抗凝剂为肝素钠2.4mg/ml生理盐水溶液。将实验动物SD雄性大鼠随机分组,n=10,大鼠灌胃给药的体积为3ml/kg,灌胃30分钟后用乌拉坦(20g/100ml,7ml/kg)麻醉,分离右颈动脉和左颈静脉,将-根含有6cm事先已精密称重的丝线的聚乙烯管充满肝素钠生理盐水溶液,一端插入左颈静脉,一端插入右颈动脉。血流从右侧动脉经聚乙烯管流入左侧静脉,15分钟后取出丝线并记录血栓湿重。结果如表3所示。表4为不同口服剂量的5j对血栓湿重的影响。在表3和表4中,化合物的标记与表1相同。
表3口服5a-p对SD雄性大鼠血栓形成的影响
n=10,a)与生理盐水组比,p<0.01;b)与生理盐水组和3比,p<0.01;c)与生理盐水组比p<0.01,与3比p<0.05。
表4不同口服剂量5j对血栓湿重的影响
n=10,a)与生理盐水组、0.01nmol/kg 5j及0.001nmol/kg 5j比,p<0.01;b)与生理盐水组比p<0.01,与0.001nmol/kg 5j比p<0.05。
Claims (10)
1.一种以下结构的化合物
5.一种制备权利要求1所述化合物的方法,其特征在于,包括如下步骤:在二氯甲烷和三氟醋酸存在下,5-甲酰水杨酸甲酯与L-色氨酸苄酯在室温下反应。
6.一种制备权利要求2所述化合物的方法,其特征在于,包括如下步骤:将权利要求1所述化合物溶于甲醇,在钯/碳存在下,与氢气反应。
7.一种制备权利要求3所述化合物的方法,其特征在于,包括如下步骤:
1)将权利要求2所述化合物溶于四氢呋喃,在冰浴条件下依次加入1-羟基苯并三唑和二环己基碳二亚胺进行活化;
2)将AA-OBzl(AA为甘氨酰基、L-丙氨酰基、L-缬氨酰基、L-异亮氨酰基、L-亮氨酰基、L-苯丙氨酰基、L-色氨酰基、L-酪氨酰基、L-丝氨酰基、L-天冬酰胺酰基、L-谷氨酰胺酰基、L-苏氨酰基、L-天冬氨酰基、L-谷氨酰基、L-赖氨酰基、或L-精氨酰基)溶于四氢呋喃,用NMM调节pH至中性后,滴加到所述反应液1中,再用N-甲基吗啉(NMM)调节pH至7.5-9.0,然后室温下进行反应。
8.一种制备权利要求4所述化合物的方法,其特征在于将权利要求3所述化合物溶于甲醇,在钯/碳和甲酸存在下,与氢气反应。
9.权利要求2所述化合物作为制备治疗血栓性疾病药物的应用。
10.权利要求4所述化合物作为制备治疗血栓性疾病药物的应用。
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