專利名稱:(1S,3S)-1-對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉酰氨基酸、其合成、抗栓活性和作為抗血栓 ...的制作方法
技術(shù)領(lǐng)域:
本發(fā)明涉及(1S,3S)-1-對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉酰氨基酸、涉及它們的合成,涉及它們的體外抗血小板聚集活性、進(jìn)一步涉及它們?cè)诖笫笱ㄐ纬赡P蜕系目寡ɑ钚?。因而本發(fā)明涉及(13,3幻-1-對(duì)硝基苯基-1,2,3,4-四氫-0-咔啉酰氨基酸作為抗血栓劑的臨·床應(yīng)用前景。本發(fā)明屬于生物醫(yī)藥領(lǐng)域。
背景技術(shù):
血栓性疾病是一種常見的心腦血管病,常表現(xiàn)為心肌梗死、缺血性腦梗死、靜脈血栓栓塞等。每年每千人中有I 3人發(fā)生不同形式的血栓性疾病,嚴(yán)重影響人類健康。目前臨床上常用的抗栓和溶栓藥物都存在著這樣或那樣的缺點(diǎn),如出血、肝損傷、胃黏膜損傷等毒副作用,尋找更加安全有效、毒副作用小的抗栓藥物是藥物研究研究的重要方向。一般認(rèn)為血栓的形成與多種因素導(dǎo)致的血小板聚集、粘附和釋放有關(guān)。抗血小板藥物成為了人們研究的熱點(diǎn)。四氫_β -咔啉-3-羧酸具有抗血小板活性已被人們廣泛認(rèn)知,但水溶性和脂溶性都差使得它的生物利用度很低,一定的結(jié)構(gòu)改造勢(shì)在必行。在咔啉類抗血栓藥物研究中,發(fā)明人揭示過用氨基酸修飾四氫咔啉可改善水溶性和提高生物利用度。發(fā)明人在多年的探索中發(fā)現(xiàn)往咔啉的I位引入對(duì)硝基苯基可獲得活性更好的咔啉母核。依據(jù)這些發(fā)現(xiàn),發(fā)明人提出了(IS, 3S)-1-對(duì)硝基苯基-1, 2, 3,4-四氫-β -咔啉酰氨基酸、它們的合成,它們的體外抗血小板聚集活性及它們?cè)诖笫笱P蜕系目寡ɑ钚缘陌l(fā)明。
發(fā)明內(nèi)容
本發(fā)明的第一個(gè)內(nèi)容是制備(13,35)-1-對(duì)硝基苯基-1,2,3,4-四氫-3-咔啉酰氨基酸,該內(nèi)容包括:I)制備L-色氨酸甲酯;2) L-色氨酸甲酯與對(duì)硝基苯甲醒經(jīng)Pictet-Spengler縮合生成(IS, 3S) _1_對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉-3-羧酸甲酯;3) (13,35)-1-對(duì)硝基苯基-1,2,3,4-四氫-3-咔啉-3-羧酸甲酯皂化,生成(1S,3S) -1-對(duì)硝基苯基-1,2,3,4-四氫昨琳-3-竣酸;4)將(13,35)-1-對(duì)硝基苯基-1,2,3,4-四氫-0-咔啉-3-羧酸與氨基酸芐酯偶聯(lián)制備(13,33)-1-對(duì)硝基苯基-1,2,3,4-四氫-β -咔啉酰氨基酸芐酯;5) (1S,3S)-1_對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉酰氨基酸芐酯皂化制備(1S,3S) -1-對(duì)硝基苯基-1,2,3,4-四氧咔琳酸氛基酸。步驟I)的色氨酸甲酯的制備包括在甲醇溶液中滴加二氯亞砜,然后加入色氨酸。步驟2)的(1S,3S)-1-對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉-3-羧酸甲酯的制備包括在鹽酸的甲醇溶液中色氨酸甲酯與對(duì)硝基苯甲醛進(jìn)行Pictet-Spengler縮合后用柱色譜進(jìn)行分離。步驟3)的(1S,3S)-1_對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉-3-羧酸的制備包括冰鹽浴下向(is,3S)-1-對(duì)硝基苯基-1,2,3,4-四氫-β -咔啉-3-羧酸甲酯四氫呋喃溶液先滴加2Ν氫氧化鈉溶液至pH為12,反應(yīng)完成之后再滴加2N的HCl溶液至pH為2。步驟4)的(IS, 3S)-1-對(duì)硝基苯基-1, 2, 3,4_四氧-β -咔琳_3_竣酸與氛基酸芐酯偶聯(lián)反應(yīng)在DCC、HOBt和NMM存在下進(jìn)行,其中氨基酸芐酯選自L-亮氨酸芐酯、L-酪氨酸芐酯、L-苯丙氨酸芐酯、L-丙氨酸芐酯、L-纈氨酸芐酯、L-色氨酸芐酯、L-天冬氨酸雙芐酯、L-Nε -Boc-賴氨酸芐酯、L-蛋氨酸芐酯、L-絲氨酸芐酯、L-脯氨酸芐酯、甘氨酸芐酯或L-谷氨酰胺芐酯。與L-脯氨酸芐酯偶聯(lián)時(shí),先把(13,33)-1-對(duì)硝基苯基-1,2,3,4-四氫! _ β _咔琳-3-竣酸制備為N-叔丁氧擬基-(IS, 3S) -1-對(duì)硝基苯基-1,2,3,4-四氫-β -咔啉-3-羧酸,再與L-脯氨酸芐酯偶聯(lián),然后在氯化氫的乙酸乙酯溶液中脫去叔丁氧擬基。步驟5)的(1S,3S)-1_對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉酰氨基酸芐酯的四氫呋喃溶液先滴加2Ν氫氧化鈉溶液至pH為12,反應(yīng)完成之后再滴加2N的HCl溶液至pH為2得到(13,35)-1-對(duì)硝基苯基-1,2,3,4-四氫-0-咔啉酰氨基酸。本發(fā)明的第一個(gè)內(nèi)容可以用圖1的合成路線描述。
圖1.(1S,3S)-1-對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉酰氨基酸的合成路線.i)甲醇和二氯亞砜;ii)對(duì)硝基苯甲醒和濃鹽酸;iii)四氫呋喃和2N氫氧化鈉溶液;iv)DCC,HOBt,四氫呋喃和NMM ;v)四氫呋喃,2N氫氧化鈉溶液和2N HCl溶液。4a和5a中AA為L(zhǎng)-亮氨酸殘基、4b和5b中AA為L(zhǎng)-酪氨酸殘基、4c和5c中AA為L(zhǎng)-苯丙氨酸殘基、4d和5d中A A為L(zhǎng)-丙氨酸殘基、4e和5e中A A為L(zhǎng)-纈氨酸殘基;4f和5f中AA為L(zhǎng)-色氨酸殘基、4g中AA為側(cè)鏈芐酯保護(hù)的L-天冬氨酸殘基、5g中AA為L(zhǎng)-天冬氨酸殘基、4h和5h中AA為L(zhǎng)-賴氨酰基、4i 和5i中AA為L(zhǎng)-蛋氨酸殘基、4j和5j中AA為L(zhǎng)-絲氨酸殘基、4k和5k中AA為L(zhǎng)-脯氨酸殘基、41和51中AA為甘氨酸殘基;4m和5m中AA為L(zhǎng)-谷氨酰胺殘基。本發(fā)明的第二個(gè)內(nèi)容是評(píng)價(jià)(IS, 3S)-1-對(duì)硝基苯基-1, 2, 3,4_四氧-β -咔琳酸氨基酸(5a-m)的抗血小板聚集活性。本發(fā)明的第二個(gè)內(nèi)容是評(píng)價(jià)(IS, 3S)-1-對(duì)硝基苯基-1, 2, 3,4_四氧-β -咔琳酸氨基酸(5a_m)的抗血栓活性。為了進(jìn)一步闡述本發(fā)明,下面給出一系列實(shí)施例。這些實(shí)施例完全是例證性的,它們僅用來對(duì)本發(fā)明進(jìn)行具體描述,不應(yīng)當(dāng)理解為對(duì)本發(fā)明的限制。
具體實(shí)施例方式實(shí)施例1制備L-色氨酸甲酯冰-鹽浴下,向150ml甲醇中邊攪拌邊滴加15ml 二氯亞砜,半小時(shí)后加入L-色氨酸10.2g(50mmol),撤去冰鹽浴,室溫?cái)嚢鑳商臁LC板顯示原料基本消失后停止反應(yīng)。減壓去除甲醇。殘留物用甲醇溶解并減壓去除甲醇。該操作重復(fù)三次。殘留物用乙醚溶解并減壓去除乙醚。該操作重復(fù)三次。最后用甲醇/乙醚重結(jié)晶,經(jīng)過兩次重結(jié)晶共得到白色固體 12.6g(99.0% )。Mp:218-2200C ; [α];)5 = 17.9 (c = 5.0, CH3OH) ;ESI+-MS (m/e):219 [M+H]+.
實(shí)施例2制備(IS, 3S)-1-對(duì)硝基苯基-1, 2, 3,4_四氧-β _昨琳-3-竣酸甲酷在30ml甲醇中緩慢加入5ml濃鹽酸,向稀鹽酸溶液中加入2.55g(IOmmol)L-色氨酸甲酯鹽酸鹽和1.66g(llmmol)對(duì)硝基苯甲醒,微波加熱75°C反應(yīng)兩小時(shí),TLC板顯示基本反應(yīng)完全。用濃氨水調(diào)PH值至6,過濾得到黃色固體。用石油醚/乙酸乙酯進(jìn)行柱層析,得到1.28g(36.1% ) (1S,3S)-1-對(duì)硝基苯基-1,2,3,4-四氫-β -咔啉_3_羧酸甲酯。ES1-MS(m/e): 352[M+H]+;IH-NMR(300MHz, DMS0_d6): δ/ppm = 10.400(s,1Η),8.242 (d,J=9.0Hz, 2Η),7.662 (d, J = 8.7Ηζ, 2Η),7.472 (d,J = 7.2Ηζ, 1Η),7.209 (d, J = 7.5Ηζ, 1Η),7.056 6.950 (m, 2Η),5.397 (s,1Η) ,3.918 (dd, J = 3.9Hz, J = 11.1Hz, 1Η),3.726 (s,3Η),3.110 3.052 (m, 1Η), 2.929 2.835 (m, 1Η).
實(shí)施例3制備(1S,3S)-1_對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉-3-羧酸冰鹽浴攪拌下用四氫呋喃溶解3.51g (IOmmol) (1S,3S)-1-對(duì)硝基苯基_1,2,3,
4-四氫-咔啉-3-羧酸甲酯,滴加2Ν氫氧化鈉溶液調(diào)節(jié)pH值至12,用TLC板檢測(cè)反應(yīng)。原料點(diǎn)基本消失后,用2N鹽酸液調(diào)節(jié)pH值至2,過濾,濾渣用蒸餾水洗,干燥得到黃色固體 3.0g (90% )。ES1-MS (m/e):338 [M+H]+ ; 1H-NMR(300MHz,DMS0_d6): δ /ppm = 10.400 (s,1H),8.242 (d, J = 8.4Hz,2H),7.672 (d, J = 8.7Hz,2H),7.465 (d, J = 7.2Hz,1H) ,7.196 (d,J = 7.2Hz, 1H), 7.044-6.917(m,2H),5.424 (s,1H), 3.764(dd, J = 3.9Hz, J = 11.1Hz, 1H),
3.084 (dd, J = 2.7Hz, J = 15.0Hz,,1H),2.875-2.781 (m,1H).
實(shí)施例4制備(IS, 3S)-1-對(duì)硝基苯基-1, 2, 3,4_四氧-β -咔琳-3-甲酸氛基酸節(jié)酯(4a_m)在50ml 茄瓶里加入 337mg (1.0mmol) (1S,3S)-1-對(duì)硝基苯基 _1,2,3,4_ 四氫-β -咔啉-3-羧酸,加入3ml無水四氫呋喃溶解,冰浴下攪拌,加入162mg(l.2mmol)HOBt, 247mg(l.2mmol)DCC形成A液。在25ml爺瓶中加入1.05mmolL-氨基酸節(jié)酯的四氫呋喃溶液,加入NMM調(diào)pH形成B液。半小時(shí)后向A液中加入B液,加入NMM調(diào)節(jié)pH至9。TLC板檢測(cè)反應(yīng)進(jìn)度。反應(yīng)完成后過濾除去二環(huán)己基脲(DCU),減壓濃縮除去溶劑,殘留物加乙酸乙酯溶解,分別用5%碳酸氫鈉溶液,飽和氯化鈉溶液,5%硫酸氫鉀溶液,飽和氯化鈉溶液,飽和碳酸氫鈉溶液,飽和氯化鈉溶液各洗3遍。乙酸乙酯層用無水硫酸鈉干燥I小時(shí),過濾,減壓濃縮除去溶劑,得到粗產(chǎn)物。再通過柱色譜進(jìn)行分離得到純品。洗脫劑。石油醚:乙酸乙酯5: 1-3: I梯度洗脫。(1S,3S)-1_對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉-3-甲酰-L-亮氨酸芐酯(4a)產(chǎn)量:227(42% )。ES1-MS (m/e):541 [M+H]+!1H-匪R(300MHz,CDCl3): δ /ppm = 10.404 (s, 1H), 8.273-8.223 (m, 3H), 7.667 (d, J = 8.7Hz,,2Η),7.437-7.321 (m,6Η),7.231-7.204 (m,1Η),7.063-6.697(m,2H),5.378 (d, J = 7.2Ηζ,,1Η),5.160(s,2Η),4.484-4.410 ( m,1Η),3.744-3.674 (m,1Η),3.324 (s,1Η),3.030 (dd, J = 5.7Ηζ,,J=15.ΟΗζ,,1Η),2.793-2.706(m,2H),1.688-1.517(m,3H),0.903(d,J = 6.3Ηζ,,3Η),
0.868 (d,J = 6.0Hz,,3Η).
(1S,3S)-1_對(duì)硝基苯基-1,2,3,4_四氫-β-咔啉-3-甲酰-L-酪氨酸芐酯(4b)
產(chǎn)量:141mg(24%)。ES1-MS(m/e):591[M+H]+!1H-匪R(300MHz,DMS0_d6):δ/ppm=10.428(s,1H),9.272(s,1H),8.282-195(m,3H),7.648(d,J=8.7Ηζ,2Η),7.433-7.196(m,9H),7.056-6.910(m,2H),6.661-6.609(m,2H),5.354(d,J=6.3Hz,1H),5.113(s,2H),5.068-4.996(m,1H),4.561(dd,J=7.2Hz,J=14,4Hz,1H),3.644-3.622(m,1H),3.575-3.536(m,1H),3.009-2.856(m,2H),2.770-2.692(m,1H).
(IS,3S)-1-對(duì)硝基苯基-1,2,3,4-四氫!-β-昨琳-3_甲酸-L-苯丙氣酸節(jié)酷(4c)產(chǎn)量:278mg(48%)。ES1-MS(m/e):575[M+H]+;1H-NmrGOOMHz,CDCl3):δ/ppm=8.229(d,J=8.7Hz,2H),7.583 7.541(m,2Η),7.501(d,J=8.7Ηζ,2Η),7.390 7.356(m,3H),7.336 7.303(m,2Η),7.282(s,1Η),7.255 7.224(m,1Η),7.206
7.137(m,5H),7.014(dd,J=1.8Hz,J=7.2Hz,2Η),5.311(s,1Η),5.179(dd,J=12.ΟΗζ,J=21.0Ηζ,2Η),4.984(dd,J=6.3Hz,J=14.4Hz,1Η),3.796 3.721(m,1Η),3.316 3.244(m,1Η),3.223 3.177(m,1Η),3.117(dd,J=6.3Hz,J=13.8Hz,1Η),2.829 2.732(m,1Η),2.l(s,lH).
(IS,3S)-1-對(duì)硝基苯基-1,2,3,4_四氧-β_昨琳-3_甲酸-L-丙氣酸節(jié)酷(4d)產(chǎn)量:284mg(57%) ES1-MS(m/e):499[M+H]+;lH-NMR(300MHz,DMS0-d6):δ/ppm=10.845(s,1H),8.312(d,J=7.2Hz,1H),8.204(d,J=8.7Hz,2H),7.513(d,J=8.7Hz,2H),7.434 7.286(m,7H),7.104 6.984(m,2H),5.369(s,1H),5.126(dd,J=12.6Hz,J=15.6Hz,2H),4.323(dq,J=7.2Hz,J=28.8Hz,1H),3.525 3.452(m,1H),2.954
2.891(m,1H),2.735 2.643(m,1H),1.322(d,J=7.2Hz,3H).
(1S,3S)-1-對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉-3-甲酰_L_纈氨酸芐酯(4e)產(chǎn)量:282mg(53%)。ES1-MS(m/e):527[M+H]+。1H-NMR(300MHz,DMS0_d6):δ/ppm=10.862(s,1H),8.218(d,J=8.7Ηζ,1Η),8.099(d,J=8.1Ηζ,2Η),7.531(d,J=8.4Hz,2Η),7.439 7.282(m,7Η),7.103 6.980(m,2Η),5.371(s,1Η),5.147(dd,J=12.6Ηζ,J=20.1Ηζ,2Η),4.236(dd,J=6.ΟΗζ,J=7.8Ηζ,2Η),3.566 3.521(m,lH),3.442
3.391(m,1Η),2.965(dd,J=4.5Hz,J=15.0Ηζ,2Η),2.142 2.031(m,1Η),0.884(dd,J=1.8Hz,J=6.6Ηζ,2Η).
(1S,3S)-1-對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉-3-甲酰-L-色氨酸芐酯(4f)產(chǎn)量:202mg(33%)。ES1-MS(m/e):614[M+H]+;1H-NMR(300MHz,DMS0_d6):δ/ppm=10.954(s,1Η),10.878(s,1Η),8.253(d,J=7.5Hz,1Η),8.148(d,J=8.1Hz,IH),7.939(S,IH),7.510(d,J=7.8Ηζ,IH),7.446-7.373(m,3Η),7.312-7.281(m,4Η),7.205-6.944(m,7Η),5.259(S,IH),4.638-4.574(m,1Η),3.209-3.168(m,1Η),
2.957-2.890(m,2Η),2.734-2.650(m,2Η).
(IS,3S)-1-對(duì)硝基苯基-1,2,3,4-四氫昨琳-3_甲酸_L-天冬氣酸雙節(jié)酷(4g)產(chǎn)量:233mg(37%)。ES1-MS(m/e):633[M+H]+^H-NMR(300MHz,CDCl3):δ/ppm=
8.213(d,J=8.4Hz,2H),7.616(d,J=8.4Hz,2H),7.557 7.546(m,3H),7.518(s,1H),7.362 7.229(m,10H),7.211 7.147(m,2H),5.346(s,1H),5.164(s,2H),5.057(s,2H),
5.030 4.913(m,1Η),3.818(dd,J=4.2Hz,J=11.1Hz,1Η),3.369 3.260(m,1Η),3.126 (dd, J = 4.8Hz, J = 17.1Hz, 1H), 2.964 (dd, J = 4.8Hz, J = 17.1Ηζ,1Η),2.857 (dd,J = 2.4Hz, J = 15.3Hz, 1Η),2.065 (s,1Η).
(1S,3S)-1_對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉酰賴氨酸芐酯(4h)產(chǎn)量:118mg(21% )。ES1-MS(m/e):556[M+H]+; 1H-NMR(300MHz,DMS0_d6): δ /ppm = 11.188 (s, 1H) ,8.275 (d, J = 8.4Ηζ,2Η),8.105 (s, 1Η), 7.631 (d,J = 8.7Ηζ,1Η),
7.478-7.322 (m, 7Η),7.191-7.069 (m, 2Η),6.166 (S,I H),5.159 (s,1Η),4.328-4.239 (m,1Η) ,3.734 (m, 1Η), 3.184 (d, J = 7.5Hz, 1Η), 2.967 (dd, J = 10.5Hz, J = 15.6Ηζ,1Η),
2.713 (d,J = 5.7Ηζ,2Η),1.734 (m, 2Η),1.559 (m, 2Η),1.436-1.343 (m, 2Η).
(IS, 3S) -1-對(duì)硝基苯基-1,2,3,4-四氫!-β-昨琳-3_甲酸-L-甲硫氣酸節(jié)酷
(4i)產(chǎn)量:209mg(36%)。ES1-MS (m/e):559 [M+H]+ ; 1H-NMR(300MHz,DMS0_d6): δ /ppm=10.835 (s,1Η),8.308 (d, J = 7.5Hz, 1Η),8.198 (d, J = 8.7Ηζ,2Η),7.524 (d, J = 9.ΟΗζ,2Η),7.437-7.280 (m, 7Η),7.101-6.981 (m, 2Η),5.369 (s,1Η),5.136 (dd, J = 12.3Hz, J =16.2Ηζ,2Η),4.502—4.431 (m, 1Η),3.507—3.462 (m, 1Η),2.948 (dd, J = 4.5Hz, J = 15.3,1Η),2.715 (dd, J = 9.ΟΗζ, J = 15.ΟΗζ, 1Η),2.013—1.975 (m, 6Η).
(1S,3S)-1-對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉-3-甲酰-L-絲氨酸芐酯(4j)產(chǎn)量:162mg(31% )。ES1-MS(m/e):515[M+H]+; 1H-NMR(300MHz,DMS0_d6): δ /ppm = 10.403 (s, 1H) ,8.264 (d, J = 8.7Hz,2H) ,8.149 (d, J = 7.8Hz,1H),7.670 (d,J = 8.7Hz, 1H), 7.457-7.337 (m, 6H), 7.213 (d, J = 7.8Hz, 1H) ,7.009 (dt, J = 6.9Hz,J = 7.8Hz,2H) ,5.393 (d, J = 6.3Hz,1H),5.172 (s,2H),4.496 (dd,J = 3.9Hz, J =
7.5Hz, 1H), 3.855-3.782 (m, 1H), 3.739-3.669 (m, 2H), 3.071-3.020 (m, 1H), 2.892 (s, 1H),
2.836-2.793 (m, 1H), 2.735 (s, 1H).
(1S,3S)-1_對(duì)硝基苯基-1,2,3,4_四氫-β-咔啉-3-甲酰-L-脯氨酸芐酯(4k)冰浴下將337mg(l.0mmol) (1S,3S)-1-對(duì)硝基苯基 _1,2,3,4_ 四氫-β-咔啉羧酸懸浮于含280mg(l.3mmol) (Boc)2O的四氫呋喃溶液中,然后加三乙胺調(diào)節(jié)pH9,TLC板檢測(cè)反應(yīng),原料點(diǎn)消失后減壓除去四氫呋喃,用乙酸乙酯溶解殘留物,然后用5%硫酸氫鉀溶液洗滌3次,飽和氯化鈉溶液洗滌3次,無水硫酸鈉干燥,過濾,減壓濃縮得到N-Boc-(lS,3S)-l-對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉羧酸。然后在50ml茄瓶里加入4371^(1.0臟010-80。-(15,35)-1-對(duì)硝基苯基-1,2,3,4-四氫-β -咔啉 _3_ 羧酸,加入3ml無水四氫呋喃溶解,冰浴下攪拌,加入162mg(l.2mmol)H0Bt, 247mg(l.2mmol)DCC形成A液。在25ml茄瓶中加入1.05mmol氨基酸芐酯的四氫呋喃溶液,加入NMM調(diào)pH形成B液。半小時(shí)后向A液中加入B液,加入NMM調(diào)節(jié)pH至9。TLC板檢測(cè)反應(yīng)進(jìn)度。反應(yīng)完成后過濾除去DCU,減壓濃縮除去溶劑,殘留物加乙酸乙酯溶解之后,分別用5 %碳酸氫鈉溶液、飽和氯化鈉溶液、5%硫酸氫鉀溶液、飽和氯化鈉溶液、飽和碳酸氫鈉溶液和飽和氯化鈉溶液各洗3遍。乙酸乙酯層用無水硫酸鈉干燥I小時(shí),過濾,減壓濃縮除去溶劑,得到粗產(chǎn)物。再通過柱色譜進(jìn)行分離得到純品。洗脫劑:石油醚:乙酸乙酯5: 1-3: I梯度洗脫。在冰鹽浴攪拌下向N-Boc-(IR, 3S) -1-對(duì)硝基苯基-1, 2, 3,4-四氧-β -咔琳酸腦氛酸節(jié)酷加入4Ν氣化氧的乙酸乙酯溶液,反應(yīng)結(jié)束后減壓去除乙酸乙酯。殘留物用乙酸乙酯溶解并減壓去除乙酸乙酯。該操作重復(fù)三次。殘留物用乙醚溶解并減壓去除乙醚。該操作重復(fù)三次。得到164mg(30% )目標(biāo)化合物,為泡狀固體。ES1-MS (m/e):547 [M+Na]+; 1H-NMR(300MHz,DMS0_d6): δ /ppm = 10.876 (s, 1Η),8.255 8.181 (m, 3Η),7.498 (d, J = 8.7Ηζ,2Η),7.423 (d, J = 8.7Ηζ,1Η),7.315 7.264(m,2H),7.106 6.931(m,3H),5.354(s,2H),5.116 (dd, J = 12.6Hz, J=18.6Ηζ,1Η),4.367 (dd, J = 3.9Hz, J = 8.7Ηζ,1Η),4.03 (dd, J = 7.2Hz, J= 14.4Ηζ,1Η),
3.631 3.603 (m, 1Η), 3.362 (s, 1Η), 2.885 (s, 1Η), 2.752-2.667 (m, 1Η), 2.193-2.083 (m,1Η),1.992 (s,1Η),1.885-1.712 (m, 1Η).
(1S,3S)-1-對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉酰甘氨酸芐酯(41)產(chǎn)量:lllmg(23% )。ESI+-MS(m/e):485[M+H]+ ; 1H-NMR(300MHz, DMS0_d6): δ /ppm = 10.845 (s, 1H) ,8.379 (d, J = 6.ΟΗζ, 1H), 8.211 (d, J = 8.7Ηζ,2Η) ,7.522 (d, J =
8.7Ηζ,2Η),7.462 (d, J = 7.5Hz, 1Η),7.373-7.282 (m, 6Η),7.104-6.979 (m, 1Η),5.396 (d,J = 4.5Hz, 1Η),3.951 (d, J = 6.ΟΗζ,2Η),3.497—3.451 (m, 1Η) 2.979 (dd, J = 4.5Hz, J =15.ΟΗζ, 1Η),2.814-2.763 (m, 1Η).
(IS, 3S) -1-對(duì)硝基苯基-1,2,3,4-四氫!-β-昨琳-3_甲酸-L-谷氣酸胺節(jié)酷(4m)產(chǎn)量:105mg(19%)。ESI+-MS(m/e):556[M+H]+ ; 1H-NMR(300MHz,DMS0_d6): δ /ppm=10.443 (s, 1H) ,8.329 (d, J = 8.7Ηζ,1Η),8.261 (d, J = 8.7Ηζ,2Η),7.678 (d, J = 8.4Ηζ,2Η),7.436-7.322 (m, 7Η),7.055-6.962 (m, 2Η),5.371 (S,I H),5.115s, 2Η),4.422-4.351 (m,1Η),3.764-3.688 (m, I H),3.356 (s, 1Η),3.044-2.994 (m, 1Η),2.798-2.717 (m, 2Η),
2.088-1.909 (m, 2Η).
實(shí)施例5制備(1S,3S)-1_對(duì)硝基苯基-1,2,3,4_四氫-β-咔啉-3-甲酰氨基酸(5a_m)冰鹽浴攪拌下在 50ml茄瓶中稱取0.1mmol (1S,3S)-1-對(duì)硝基苯基_1,2,3,4-四氫-β -咔啉酰氨基酸芐酯、加2ml無水THF溶解、滴加2N氫氧化鈉溶液調(diào)節(jié)pH值至12、用TLC板檢測(cè)反應(yīng)。原料點(diǎn)基本消失后,用2N鹽酸液調(diào)節(jié)pH值至2、過濾、濾渣用蒸餾水洗、干燥得到黃色固體。(IS, 3S)-1-對(duì)硝基苯基-1, 2, 3,4_四氧-β -咔琳_3_甲酸-L-売氛酸(5a)產(chǎn)量:39mg(88%)。ES 1-MS (m/e):449 [Μ-ΗΓ。1H-NMR (300MHz,DMS0_d6): δ /ppm =
12.360 (s,1H),8.872(s,2H),8.411-8.363 (m,5H),7.310 (d,J = 7.8Hz, 1H),7.597 (d,J =
6.,9Hz,1H),7.323 (d, J = 6.9Hz, 1H),4.274 (s, 1H),1.738-1.582 (m, 3H),0.944-0.886 (m,6H).
(1S,3S)-1_對(duì)硝基苯基-1,2,3,4_四氫-β-咔啉-3-甲酰-L-酪氨酸(5b)產(chǎn)量:36mg(73% )。ES1-MS(m/e):498[Μ_ΗΓ。1H-NMR(300ΜΗζ,DMS0_d6): δ /ppm = 12.236 (s, 1H),8.544-8.444 (m, 3H),8.356 (d, J = 8.1Hz,2H),7.781-7.708 (m, 1H),
7.638 (d, J = 8.4Hz, 1H),7.349-7.294 (m, 2H),7.136-7.045 (m, 2H),6.729-6.702 (m, 2H),
4.755 (d, J = 7.5Hz, 1H),4.489 (s, 1H),4.0326 (m, 1H),3.801-3.733 (m, 1H),3.189 (m, 3H),
3.030 (d,J = 5.4Hz, 1H).
(IS, 3S) -1-對(duì)硝基苯基-1,2,3,4-四氧_ β _咔琳_3_甲酸_L_苯丙氛酸(5c)產(chǎn)量:39mg(82% )。ES1-MS(m/e):483[Μ_ΗΓ。1H-NMR(300ΜΗζ,DMS0_d6): δ /ppm = 10.460 (s, 1Η),8.438-8.297 (m, 1Η),8.224 (d, J = 7.8Ηζ,2Η),7.728-7.613 (m, 3Η),7.454 (d, J = 7.2Hz, 1H), 7.325 (d, J = 7.2Hz,1H),7.226-7.189 (m,5H),7.027 (t,J =7.2Ηζ,2Η) ,5.340 (s, 1Η) ,4.218 (d, J = 3.9Ηζ,1Η),3.171-3.142 (m,1Η),3.046-3.001 (m,2Η),2.663 (t, J = 6.6Hz, 1Η).
(IS, 3S) -1-對(duì)硝基苯基-1,2,3,4-四氧_ β _咔琳_3_甲酸_L_丙氛酸(5d)產(chǎn)量:35mg(86% )。ES1-MS(m/e):407[Μ_ΗΓ。1H-NMR(300ΜΗζ,DMS0_d6): δ /ppm = 12.203 (s, 1H),9.005-8.947 (m, 1H),8.486-8.455 (m, 4H) ,7.818 (d, J = 8.4Hz, 1H),
7.748 (d, J = 8.1Hz, 1H),7.644 (d, J = 7.5Hz, 1H),7.357 (d, J = 7.5Hz, 1H),7.290 (d, J =
8.4Hz, 1H),4.735-4.611 (m,1H),2.997-2.919 (m, 2H),2.801-2.757 (m, 2H),2.588 (d, J =
2.7Hz, 1H) ,2.559 (m, 3H).
(IS, 3S)-1-對(duì)硝基苯基-1, 2, 3,4_四氧-β -咔琳-3-甲酸-L-繳氛酸(5e)產(chǎn)量:34mg(78%) ES1-MS (m/e):435 [Μ-ΗΓ。1H-NMR(300MHz,DMS0_d6): δ /ppm =12.272 (s, 1H),8.949 (s, 1H) ,8.601 (d, J = 9.0Hz, 1H),8.511-8,450 (m, 3H) ,8.391 (d, J =
8.4Hz,2H),7.756 (d,J = 8.1Hz, 1H),7.663-7.613 (m,1H),7.375-7.304 (m, 2H), 5.213 (d,J=5.1Hz,1H),4.568-4.497 (m, 2H),2.296 (d, J = 6.0Hz,1H),1.000-0.983 (m, 8H).
(1S,3S)-1_對(duì)硝基苯基-1,2,3,4_四氫-β-咔啉-3-甲酰-L-色氨酸(5f)產(chǎn)量:37mg(72% )。ES1-MS(m/e):522[Μ_ΗΓ。1H-NMR(300ΜΗζ,DMS0_d6): δ /ppm = 10.860 (s, 1H), 10.431 (s, 1Η), 8.423 (d, J = 8.4Ηζ,1Η),8.226 (d,J = 7.8Ηζ,1Η),
7.826-7.727 (m, 1Η),7.563 (d, J = 8.4Ηζ,,2Η),7.461 (d, J = 7.2Hz, 1Η),7.359-7.288 (m,4Η),7.220 (d,J = 6.9 Hz, 1Η),7.146 (s,1Η),7.059-6,966 (m,2Η),6.916-6.814 (m,I H),
5.315 (s,I H),4.516-4.465 (m,2H),3.616 (d,J = 8.4Hz, 1Η),3.328-3.291 (m,I H),
3.053 (d, J = 14.1Hz, 1Η),2.730—2.642 (m, 1Η).
(1S,3S)-1_對(duì)硝基苯基-1,2,3,4_四氫-β-咔啉-3-甲酰-L-天冬氨酸(5g)產(chǎn)量:38mg(85%)。ES1-MS(m/e):451 [Μ-ΗΓ。1H-NMR(300MHz,DMS0_d6): δ /ppm=12.243 (s,1Η),10.872 (s, 1Η),8.487-8.452 (m, 2Η),8.339 (d, J = 8.4Hz, 1Η),7.8020 (d,J = 8.4Ηζ,2Η),7.553 (d,J = 7.2Hz, 1Η),7.385-7.274(m,2H),7.134 (d,J = 7.2Hz, 1Η),
7.093-7.044 (m, 1Η),4.710-4.643 (m, 1Η),2.934 (d, J = 5.4Hz, 1Η),2.816-2.769 (m, 2Η),1.916(s,2Η).
(IS, 3S) -1-對(duì)硝基苯基-1,2,3,4-四氧_ β _咔琳_3_甲酸_L_賴氛酸(5h)產(chǎn)量:34mg(73% )。ES1-MS(m/e):464[Μ_ΗΓ。1H-NMR(300ΜΗζ,DMS0_d6): δ /ppm = 12.403 (s, 1Η) ,9.301 (d, J = 7.2Hz, 1Η),8.488-8.456 (m, 1Η),8.359-8.281 (m, 4Η),7.849 (d, J = 8.4Ηζ,2Η),7.537 (d, J = 7.5Hz, 1Η),7.360-7.276 (m, 1Η),7.151-7.035 (m,1Η),4.303 (s,1Η),3.590-3.465 (m,I H),3.174(t,J = 10.5Ηζ, I),2.758 (s,2Η),
1.798-1.519(m,7H).
(IS, 3S) -1-對(duì)硝基苯基-1,2,3,4-四氧_ β _咔琳_3_甲酸_L_蛋氛酸(5i)產(chǎn)量:36mg(76%)。ES1-MS(m/e):467[Μ_ΗΓ。1H-NMR(300ΜΗζ,DMS0_d6): δ /ppm=12.177 (s, 1H) ,9.136 (d, J = 8.7Hz, 1H), 8.954 (s, 1H), 8.490-8.405 (m, 4Η), 7.735 (d,J = 8.1Hz, 1Η) ,7.644 (d, J = 7.2Hz, 1Η), 7.381-7.244(m,2H) ,5.191-5.102 (m, 1Η),
4.939-4.894 (m, 1Η),4.214-4.102 (m, 7Η),3.657 (d, J = 12Hz, 1Η),2.935 (d, J = 4.5Ηζ,2Η).
(IS, 3S) -1-對(duì)硝基苯基-1,2,3,4-四氧_ β _咔琳_3_甲酸-L-絲氛酸(5j)產(chǎn)量:31mg(74%)。ES1-MS(m/e):423[Μ_ΗΓ。1H-NMR(300ΜΗζ,DMS0_d6): δ /ppm=12.354 (s, 1H), 8.960 (s, 1Η), 8.809 (d, J = 8.1Hz,1Η),8.500-8.431 (m,5Η),7.783 (d,J = 8.1Ηζ,7Η),7.663-7.613 (m,1Η),7.376-7.308 (m,1Η),4.615 (d,J = 3.9Ηζ,1Η),
3.975-3.939 (m, 2Η), 3.850-3.826 (m, 2Η).
(IS, 3S)-1-對(duì)硝基苯基-1, 2, 3,4_四氧-β -咔琳_3_甲酸-L-腦氛酸(5k)產(chǎn)量:30mg(69% )。ESI_MS(m/e):434[Μ_ΗΓ。1H-NmrOOOMHz, DMS0_d6):δ/ppm = 12.062(d,J = 213Hz,1Η),8.789 (d, J = 174Hz,1Η),8.488-8.415(m,3Η),
8.347-8.287 (m, 2Η),7.874-7.561 (m, 2Η),7.359-7.311 (m,2Η),5.408 (d, J = 8.7Hz, 1Η),
4.408 (d, J = 105Hz, 1Η),4.090-4.069 (m, 1Η),3.734-3.688 (m, 2Η),2.348-2.306 (m, 1Η),
1.947-1.799 (m, 6Η).
(IS, 3S) -1-對(duì)硝基苯基-1,2,3,4-四氧_ β _咔琳_3_甲酸_L_甘氛酸(51)
產(chǎn)量:35mg(89%)。ES1-MS(m/e):393[Μ_ΗΓ。1H-NMR(300ΜΗζ,DMS0_d6): δ /ppm=12.093 (s,1Η),8.945 (s,1Η),8.476(s,4H),7.734-7.621 (m,2H),7.422-7.377(m,4H),
5.199(s,2H),4.239 (d,J = 6.0Ηζ,2Η),4.095 (d,J = 5.7Hz, 1Η).
(IS, 3S)-1-對(duì)硝基苯基-1, 2, 3,4_四氧-β -咔琳_3_甲酸-L-谷氛酸胺(5m)產(chǎn)量:38mg(82% )。ESI_MS(m/e):464[Μ_ΗΓ。1H-NMR(300ΜΗζ,DMS0_d6): δ /ppm = 12.160(s,1H),8.512-8.412(m,3H),8.273(d,J = 8.4Hz, 1H), 7.751-7.618 (m,2H),7.402-7.279 (m, 3H),7.228 (d, J = 5.1Hz, 1H) ,4.572 (s, 1H) ,4.498 (s, 1H),4.206 (d, J = 6.9Hz, 1H),3.176-3.097 (m, 1H),2.877-2.685 (m, 1H),2.453-2.399 (m, 1H),
2.249-2.089 (m, 5H).
實(shí)施例6體外抗血小板聚集活性評(píng)價(jià)豬頸動(dòng)脈取血,用3.8%枸櫞酸鈉(V__: V個(gè)血=1: 9)抗凝。1000g/min離心10分鐘得富血小板血漿(PRP),再以3000g/min離心10分鐘,得貧血小板血漿(PPP)。以膠原(ADP)、血小板活化因子(PAF)、凝血酶(TH)和花生四烯酸(AA)為誘導(dǎo)劑誘導(dǎo)血小板聚集。母核3和(IS, 3S)-1-對(duì)硝基苯基-1, 2, 3,4_四氧-β -咔琳_3_甲酸氛基酸(5a_m)均用生理鹽水溶解。每個(gè)數(shù)據(jù)平行測(cè)6次。表I數(shù)據(jù)說明母核以及13個(gè)氨基酸修飾的目標(biāo)化合物均對(duì)ADP誘導(dǎo)的血小板聚集的沒有抑制作用,表2數(shù)據(jù)說明對(duì)PAF誘導(dǎo)的血小板聚集沒有抑制作用,表3數(shù)據(jù)說明對(duì)TH誘導(dǎo)的血小板聚集具有抑制作用,表4數(shù)據(jù)說明對(duì)AA誘導(dǎo)的血小板聚集具有抑制作用。通過數(shù)據(jù)還可以看到本發(fā)明經(jīng)過氨基酸修飾后的一些目標(biāo)化合物抑制TH和AA誘導(dǎo)的血小板聚集作用比母核抑制作用增強(qiáng)。表15a_m在100 μ M濃度下對(duì)ADP誘導(dǎo)的血小板聚集作用的影響化合物抑制宇.化合物抑制率
315.6%5g7.5%
5a36.9%5h34.4%
5b35.6%5i44.4%
5c11.9%5j12.5%
5d30.0%5k3.8%
5e18.8%5126.9%
5f7.5%5m11.3%表25a_m在100 μ M濃度下對(duì)PAF誘導(dǎo)的血小板聚集作用的影響
化合物抑制宇.化合物抑制率
35.6%5g20.6%
5a30.0%5h31.3%
5b14.4%5i23.1%
5c11.9%5j31.3%
5d38.1%5k21.9%
5e28.1%5151.3%
5f36.9%5 m43.8%表35a_m在100 μ M濃度下對(duì)TH誘導(dǎo)的血小板聚集作用的影響
化合物抑制率化合物抑制率
332.1%5g70.5%
5a21.4%5h19.6%
5b0.0%5i12.5%
5c78.6%5j34.8%
5d15.2%5k37.5%
Se25.9%5 丨10.7%
5f31.3%5m15.2%表45a_m在100 μ M濃度下對(duì)AA誘導(dǎo)的血小板聚集作用的影響化合物抑制率化合物抑制率
320.5%5g44.3%
5a25.0%5h37.5%
5b18.2%5i9.1%
5c15.9%5j20.5%
5d25.0%5k17.0%
5e45.5%5145.5%
5f55.7%5m36.4%實(shí)施例75a_m的抗血栓活性評(píng)價(jià)實(shí)驗(yàn)前將化合物(母核3和5a_m)配成0.33nmol/l生理鹽水溶液(加入少量的吐溫80潤(rùn)濕助溶),用于體內(nèi)的劑量為1.0nmol/kg。陽性藥Asprin配成10g/l生理鹽水溶液,即55.5mmol/l的濃度,用于體內(nèi)的劑量為167μπι01/1^??瞻讓?duì)照為生理鹽水,抗凝劑為肝素鈉2.4mg/ml生理鹽水溶液。將雄性SD大鼠隨機(jī)分組,每組12只大鼠?;衔?5a-m)、母核3、空白和陽性藥共分為15組,以(3ml/kg)給大鼠灌胃,30分鐘后,用烏拉坦(20g/100ml,7ml/kg),麻醉后,分離右頸動(dòng)脈和左頸靜脈。把一根6cm長(zhǎng)的事先精密稱重的絲線放在聚乙烯管中,將插管充滿肝素鈉的生理鹽水溶液(50IU/ml)后,一端插入左側(cè)靜脈,從一端加入定量肝素鈉抗凝,然后插入右側(cè)動(dòng)脈。血流從右側(cè)動(dòng)脈流經(jīng)聚乙烯管流入左側(cè)靜脈,15分鐘后取出絲線并記錄血栓濕重。數(shù)據(jù)列入表3。表35a_m對(duì)SD雄性大鼠血栓形成的影響
權(quán)利要求
1.通式I的化合物,式中AA為L(zhǎng)-亮氨酸殘基、L-酪氨酸殘基、L-苯丙酸殘基、L-丙氨酸殘基、L-纈氨酸殘基、L-色氨酸殘基、側(cè)鏈芐酯保護(hù)的L-天冬氨酸殘基、L-賴氨酸殘基、L-蛋氨酸殘基、L-絲氨酸殘基、L-脯氨酸殘基、甘氨酸殘基或L-谷氨酰胺殘基。
2.制備權(quán)力要求I和2的化合物的方法,該方法包括: .1)制備L-色氨酸甲酯; .2)L-色氨酸甲酯與對(duì)硝基苯甲醒經(jīng)Pictet-Spengler縮合生成(IS, 3S) -1-對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉-3-羧酸甲酯; .3)(15,35)-1-對(duì)硝基苯基-1,2,3,4_四氫-β -咔啉_3_羧酸甲酯皂化,生成(1S,.3S) -1-對(duì)硝基苯基-1,2,3,4-四氫昨琳-3-竣酸; .4)將(1S,3S)-1-對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉-3-羧酸與氨基酸芐酯偶聯(lián)制備(13,33)-1-對(duì)硝基苯基-1,2,3,4-四氫-β -咔啉酰氨基酸芐酯; 5)(1S,3S)-1-對(duì)硝基苯基-1,2,3,4-四氫-β -咔啉酰氨基酸芐酯皂化制備(1S,.3S) -1-對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉酸氨基酸;
3.按照權(quán)利要求2所述的方法,其特征在于步驟I)中所述的色氨酸甲酯的制備方法包括在甲醇溶液中滴加二氯亞砜,然后加入色氨酸。
4.按照權(quán)利要求2所述的方法,其特征在于步驟2)的(1S,3S)-1-對(duì)硝基苯基_1,2,3,.4-四氫-β -咔啉-3-羧酸甲酯的制備方法包括在鹽酸的甲醇溶液中色氨酸甲酯與對(duì)硝基苯甲醒進(jìn)行Pictet-Spengler縮合后用柱色譜進(jìn)行分離,得到(1S,3S)_1_對(duì)硝基苯基-1,.2.3.4-四氫-β-咔啉-3-羧酸甲酯。
5.按照權(quán)利要求2所述的方法,其特征在于步驟3)的(13,33)-1-對(duì)硝基苯基-1,2,.3.4-四氧-β-咔琳_3_竣酸的制備方法包括冰鹽浴下向(IS, 3S) -1-對(duì)硝基苯基-1, 2, 3,.4-四氫-咔啉-3-羧酸甲酯四氫呋喃溶液先滴加2Ν氫氧化鈉溶液至pH為12,反應(yīng)完成之后再滴加2N的HCl溶液至pH為2得到(1S,3S)-1-對(duì)硝基苯基-1,2,3,4-四氫-β -咔啉-3-羧酸。
6.按照權(quán)利要求2所述的方法,其特征在于步驟4)的(15,35)-1-對(duì)硝基苯基-1,2,.3,4-四氫-β -咔啉-3-羧酸與氨基酸節(jié)酯偶聯(lián)制備(IS, 3S) -1-對(duì)硝基苯基-1,2, 3,4-四氫-β-咔啉酰氨基酸芐酯。反應(yīng)在二環(huán)己基羰二亞胺(DCC),N-羥基苯并三氮唑(HOBt)和N-甲基嗎啉(NMM)存在下進(jìn)行,其中氨基酸芐酯選自L-亮氨酸芐酯、L-酪氨酸芐酯、L-苯丙氨酸芐酯、L-丙氨酸芐酯、L-纈氨酸芐酯、L-色氨酸芐酯、L-天冬氨酸雙芐酯、L-Ne-Boc-賴氨酸芐酯、L-蛋氨酸芐酯、L-絲氨酸芐酯、L-脯氨酸芐酯、甘氨酸芐酯或L-谷氨酰胺芐酯。與L-脯氨酸芐酯偶聯(lián)時(shí),先把(1S,3S) -1-對(duì)硝基苯基-1,2,3,4-四氫-β -咔琳_3_竣酸制備為N-叔丁氧擬基-(IS, 3S) -1-對(duì)硝基苯基-1, 2,3,4-四氧-β -咔琳-3-竣酸,再與L-脯氨酸芐酯偶聯(lián),然后在氯化氫的乙酸乙酯溶液中脫去叔丁氧羰基。
7.按照權(quán)利要求2所述的方法,其特征在于步驟5)的(1S,3S)-1-對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉酰氨基酸芐酯的四氫呋喃溶液先滴加2Ν氫氧化鈉溶液至pH為12,反應(yīng)完成之后再滴加2N的HCl溶液至pH為2得到(1S,3S)-1-對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉酰氨基酸。
8.權(quán)力要求I的化合物的抗血栓作用。
9.權(quán)力要求I的化合物的作為抗血栓 劑的應(yīng)用。
全文摘要
本發(fā)明公開了通式I的(1S,3S)-1-對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉酰氨基酸、公開了它們的合成、公開了它們的體外抗血小板聚集活性、進(jìn)一步公開了它們?cè)诖笫笱P蜕系捏w內(nèi)抗血栓活性。因而本發(fā)明公開了(1S,3S)-1-對(duì)硝基苯基-1,2,3,4-四氫-β-咔啉酰氨基酸作為抗血栓劑的臨床應(yīng)用前景。
文檔編號(hào)A61K31/437GK103159758SQ201110415209
公開日2013年6月19日 申請(qǐng)日期2011年12月13日 優(yōu)先權(quán)日2011年12月13日
發(fā)明者趙明, 彭師奇, 王玉記, 吳建輝, 李偉 申請(qǐng)人:首都醫(yī)科大學(xué)