CN114920722A - 一种7-羟基-3-乙酰基香豆素肟类化合物、其制备方法及医药用途 - Google Patents
一种7-羟基-3-乙酰基香豆素肟类化合物、其制备方法及医药用途 Download PDFInfo
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- CN114920722A CN114920722A CN202110611669.4A CN202110611669A CN114920722A CN 114920722 A CN114920722 A CN 114920722A CN 202110611669 A CN202110611669 A CN 202110611669A CN 114920722 A CN114920722 A CN 114920722A
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
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- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
- C07D311/06—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2
- C07D311/08—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring
- C07D311/16—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring substituted in position 7
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- A—HUMAN NECESSITIES
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- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
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- A—HUMAN NECESSITIES
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- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/06—Antiarrhythmics
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
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Abstract
本发明<<一种7‑羟基‑3‑乙酰基香豆素肟类化合物、其制备方法及医药用途>>以具有抗血小板聚集活性的7‑羟基‑3‑乙酰基香豆素为先导化合物,先分别对7‑位羟基进行胺基醚化、8‑位胺甲基化,以提高其水溶性;再对1‑位酮羰基肟化以提高其抗血小板聚集活性。本发明具体涉及新型7‑羟基‑3‑乙酰基香豆素肟类化合物的制备方法和在制药中的应用。该类化合物具有抗血小板聚集作用,可用于制备心脑血管疾病的治疗药物。
Description
技术领域
本发明涉及药物化学和药物治疗学领域,具体涉及7-羟基-3-乙酰基香豆素肟类化合物及其制备方法和在制药中的应用。该类化合物具有抗血小板聚集作用,可用于制备心脑血管疾病的治疗药物。本发明还涉及这类化合物的制备方法。
背景技术
心脑血管疾病已成为严重威胁人类健康的常见疾病之一(Drug Des Devel Ther,2011,5:325-380)。血栓形成与心脑血管疾病的发病原因密切相关。临床研究证实,抗血小板药物能够有效降低常见的心脑血管疾病(如心肌梗死、冠心病、脑缺血、中风、脑梗死)的发病率。目前常用的抗血小板药物有环氧酶抑制剂(如阿司匹林)、腺苷受体拮抗剂(如氯吡格雷)等,由于在治疗的同时,也带来诸如药物抵抗、出血等不良反应,难以满足临床治疗的需要。因此,进一步寻找疗效强副作用小的抗血小板药物具有较高的研究价值。
中药治疗心脑血管疾病历史悠久,因其具有多靶点、多效应、不良反应低等优点,在心脑血管疾病治疗中占有重要地位。香豆素类化合物是一类具有苯骈α-吡喃酮母核的重要天然产物,广泛分布于芸香科、伞形科、木樨科、豆科、菊科及兰科等植物中,具有多种药理作用,如抗血栓生成、抗抑郁、抗菌、抗炎、抗氧化、抗HIV和抗肿瘤等(Eur J Med Chem,2015,101:476-495;Eur J Med Chem,2015,100:257-269.)。研究表明,一些天然的香豆素衍生物对多种诱导剂引起的血小板聚集有很显著的抑制作用,具有潜在的药用价值(中国药理学通报,2005,21(4):440;Molecules,2008,13,122-128.)。目前,已用于临床防治血栓栓塞性疾病的香豆素类化合物有双香豆素、华法林等,但由于作用机制单一(主要通过与维生素K发生竞争性抑制,阻碍维生素K依赖性凝血因子Ⅱ、Ⅶ、Ⅸ、Ⅹ的合成,从而起抗凝血作用),起效缓慢,易致出血,在一定程度上影响其广泛应用。研究发现,在香豆素环上不同位置引入不同的基团,得到的一些化合物不仅具有较高的抗血小板聚集作用,而且抗血小板作用机制多样(Bioorg Med Chem,2012,20:1624-1638;J Med Chem,2007,50:2886-2895.)。针对香豆素类化合物的抗血小板聚集作用,我们开展了大量的结构修饰工作,并取得了较好的成效。本发明以7-羟基-3-乙酰基-香豆素为原料,先对其7-位酚羟基进行胺烷基醚化或8-位进行胺甲基化(以提高其水溶性),再对其3-位酮羰基肟化(以增强其抗血小板聚集活性),分别得到Ⅰ、Ⅱ类目标化合物。
发明内容
本发明首次公开了一类具有抗血小板聚集活性的香豆素7-羟基-3-乙酰基香豆素肟类化合物及其药学上可接受的盐、其制备方法及其医药用途。实验证明,该类化合物不仅具有良好的抗血小板聚集活性,而且还具有良好的水溶性和低的细胞毒性,因此,它们可用于治疗心脑血管系统的疾病。
本发明公开的化合物是通式Ⅰ、Ⅱ所示的7-羟基-3-乙酰基香豆素肟类化合物或其药学上可接受的盐:
通式Ⅰ中:n为1~6的整数;R代代表NR1R2;R1和R2可相同或不同,并且彼此独立地代表氢原子、C1-C6烷基、苯基、苄基、苯乙基或R1和R2与其所连接的氮原子一起形成五至七元脂肪杂环,该环基可任意地由下述相同或不同的取代基单取代至五取代,所述取代基包括:C1-C6烷基、C1-C6烷氧基、羟基或羟基-(C1-C6)烷基。
通式Ⅱ中:R代代表NR1R2;R1和R2可相同或不同,并且彼此独立地代表氢原子、C1-C6烷基、苯基、苄基、苯乙基或R1和R2与其所连接的氮原子一起形成五至七元脂肪杂环,该环基可任意地由下述相同或不同的取代基单取代至五取代,所述取代基包括:C1-C6烷基、C1-C6烷氧基、羟基或羟基-(C1-C6)烷基。
本发明优选的化合物为通式Ⅰ所示的7-羟基-3-乙酰基香豆素肟类化合物及其药学上可接受的盐,其特征在于:
n为2~6的整数;R代表氨基、2-氨基乙胺基、2-乙胺基乙胺基、苯胺基、苄胺基、苯乙胺基、二甲胺基、二乙胺基、二丙胺基、二正丁胺基、四氢吡咯基、哌啶基、吗啡啉基、哌嗪基、4-甲基哌啶基、N-甲基哌嗪基、N-乙基哌嗪基、N-苄基哌嗪基或4-羟乙基哌嗪基;
本发明优选的化合物为通式Ⅱ所示的3-乙酰基-7-羟基香豆素肟类化合物及其药学上可接受的盐,其特征在于:
R代表氨基、2-氨基乙胺基、2-乙胺基乙胺基、苯胺基、苄胺基、苯乙胺基、二甲胺基、二乙胺基、二丙胺基、二正丁胺基、四氢吡咯基、哌啶基、吗啡啉基、哌嗪基、4-甲基哌啶基、N-甲基哌嗪基、N-乙基哌嗪基、N-苄基哌嗪基或4-羟乙基哌嗪基。
本发明进一步优选的化合物为通式Ⅰ中所示的7-羟基-3-乙酰基香豆素肟类化合物或其药学上可接受的盐,其特征在于:
n为2~6的整数;
R代表2-乙胺基乙胺基、苄胺基、苯乙胺基、二甲胺基、二乙胺基、四氢吡咯基、哌啶基、吗啡啉基、哌嗪基、N-甲基哌嗪基、N-乙基哌嗪基、N-苄基哌嗪基或4-羟乙基哌嗪基;
本发明进一步优选的化合物为通式Ⅱ中所示的7-羟基-3-乙酰基香豆素肟类化合物或其药学上可接受的盐,其特征在于:
R代表2-乙胺基乙胺基、苄胺基、苯乙胺基、二甲胺基、二乙胺基、四氢吡咯基、哌啶基、吗啡啉基、哌嗪基、N-甲基哌嗪基、N-乙基哌嗪基、N-苄基哌嗪基或4-羟乙基哌嗪基。
具体来说,通式Ⅰ、Ⅱ所示的7-羟基-3-乙酰基香豆素肟类化合物优选自下列化合物:
7-[2-(2-乙胺基乙胺基)乙氧基]-3-乙酰香豆素肟;
7-[3-(2-乙胺基乙胺基)丙氧基]-3-乙酰香豆素肟;
7-[4-(2-乙胺基乙胺基)丁氧基]-3-乙酰香豆素肟;
7-[5-(2-乙胺基乙胺基)戊氧基]-3-乙酰香豆素肟;
7-[6-(2-乙胺基乙胺基)己氧基]-3-乙酰香豆素肟;
7-(2-苄胺基乙氧基)-3-乙酰香豆素肟;
7-(3-苄胺基丙氧基)-3-乙酰香豆素肟;
7-(4-苄胺基丁氧基)-3-乙酰香豆素肟;
7-(5-苄胺基戊氧基)-3-乙酰香豆素肟;
7-(6-苄胺基己氧基)-3-乙酰香豆素肟;
7-(2-二甲胺基乙氧基)-3-乙酰香豆素肟;
7-(3-二甲胺基丙氧基)-3-乙酰香豆素肟;
7-(4-二甲胺基丁氧基)-3-乙酰香豆素肟;
7-(5-二甲胺基戊氧基)-3-乙酰香豆素肟;
7-(6-二甲胺基己氧基)-3-乙酰香豆素肟;
7-(2-二乙胺基乙氧基)-3-乙酰香豆素肟;
7-(3-二乙胺基丙氧基)-3-乙酰香豆素肟;
7-(4-二乙胺基丁氧基)-3-乙酰香豆素肟;
7-(5-二乙胺基戊氧基)-3-乙酰香豆素肟;
7-(6-二乙胺基己氧基)-3-乙酰香豆素肟;
7-[2-(1-哌啶基)乙氧基]-3-乙酰香豆素肟;
7-[3-(1-哌啶基)丙氧基]-3-乙酰香豆素肟;
7-[4-(1-哌啶基)丁氧基]-3-乙酰香豆素肟;
7-[5-(1-哌啶基)戊氧基]-3-乙酰香豆素肟;
7-[6-(1-哌啶基)己氧基]-3-乙酰香豆素肟;
7-[2-(1-吗啡啉基)乙氧基]-3-乙酰香豆素肟;
7-[3-(1-吗啡啉基)丙氧基]-3-乙酰香豆素肟;
7-[4-(1-吗啡啉基)丁氧基]-3-乙酰香豆素肟;
7-[5-(1-吗啡啉基)戊氧基]-3-乙酰香豆素肟;
7-[6-(1-吗啡啉基)己氧基]-3-乙酰香豆素肟;
7-[2-(1-哌嗪基)乙氧基]-3-乙酰香豆素肟;
7-[3-(1-哌嗪基)丙氧基]-3-乙酰香豆素肟;
7-[4-(1-哌嗪基)丁氧基]-3-乙酰香豆素肟;
7-[5-(1-哌嗪基)戊氧基]-3-乙酰香豆素肟;
7-[6-(1-哌嗪基)己氧基]-3-乙酰香豆素肟;
7-[2-(4-甲基-1-哌嗪基)乙氧基]-3-乙酰香豆素肟;
7-[3-(4-甲基-1-哌嗪基)丙氧基]-3-乙酰香豆素肟;
7-[4-(4-甲基-1-哌嗪基)丁氧基]-3-乙酰香豆素肟;
7-[5-(4-甲基-1-哌嗪基)戊氧基]-3-乙酰香豆素肟;
7-[6-(4-甲基-1-哌嗪基)己氧基]-3-乙酰香豆素肟;
7-[2-(4-乙基-1-哌嗪基)乙氧基]-3-乙酰香豆素肟;
7-[3-(4-乙基-1-哌嗪基)丙氧基]-3-乙酰香豆素肟;
7-[4-(4-乙基-1-哌嗪基)丁氧基]-3-乙酰香豆素肟;
7-[5-(4-乙基-1-哌嗪基)戊氧基]-3-乙酰香豆素肟;
7-[6-(4-乙基-1-哌嗪基)己氧基]-3-乙酰香豆素肟;
7-[2-(4-苄基-1-哌嗪基)乙氧基]-3-乙酰香豆素肟;
7-[3-(4-苄基-1-哌嗪基)丙氧基]-3-乙酰香豆素肟;
7-[4-(4-苄基-1-哌嗪基)丁氧基]-3-乙酰香豆素肟;
7-[5-(4-苄基-1-哌嗪基)戊氧基]-3-乙酰香豆素肟;
7-[6-(4-苄基-1-哌嗪基)己氧基]-3-乙酰香豆素肟;
7-[2-(4-羟乙基-1-哌嗪基)乙氧基]-3-乙酰香豆素肟;
7-[3-(4-羟乙基-1-哌嗪基)丙氧基]-3-乙酰香豆素肟;
7-[4-(4-羟乙基-1-哌嗪基)丁氧基]-3-乙酰香豆素肟;
7-[5-(4-羟乙基-1-哌嗪基)戊氧基]-3-乙酰香豆素肟;
7-[6-(4-羟乙基-1-哌嗪基)己氧基]-3-乙酰香豆素肟;
7-羟基-8-乙胺基甲基-3-乙酰香豆素肟;
7-羟基-8-苄胺基甲基-3-乙酰香豆素肟;
7-羟基-8-二甲胺基甲基-3-乙酰香豆素肟;
7-羟基-8-二乙胺基甲基-3-乙酰香豆素肟;
7-羟基-8-(1-哌啶基甲基)-3-乙酰香豆素肟;
7-羟基-8-(1-哌嗪基甲基)-3-乙酰香豆素肟;
7-羟基-8-(1-吗啡啉基甲基)-3-乙酰香豆素肟;
7-羟基-8-(4-甲基-1-哌嗪基甲基)-3-乙酰香豆素肟;
7-羟基-8-(4-乙基-1-哌嗪基甲基)-3-乙酰香豆素肟;
7-羟基-8-((4-羟乙基-1-哌嗪基甲基)-3-乙酰香豆素肟
7-羟基-8-(4-苄基-1-哌嗪基甲基)-3-乙酰香豆素肟。
更具体来讲,通式I、Ⅱ所述化合物进一步优选自下列化合物:
7-[2-(1-吗啡啉基)乙氧基]-3-乙酰香豆素肟(化合物编号:Ⅰ1,下同);
7-[3-(1-吗啡啉基)丙氧基]-3-乙酰香豆素肟(Ⅰ2);
7-[4-(1-吗啡啉基)丁氧基]-3-乙酰香豆素肟(Ⅰ3);
7-[5-(1-吗啡啉基)戊氧基]-3-乙酰香豆素肟(Ⅰ4);
7-[6-(1-吗啡啉基)己氧基]-3-乙酰香豆素肟(Ⅰ5);
7-[2-(1-哌啶基)乙氧基]-3-乙酰香豆素肟(Ⅰ6);
7-[3-(1-哌啶基)丙氧基]-3-乙酰香豆素肟(Ⅰ7);
7-[4-(1-哌啶基)丁氧基]-3-乙酰香豆素肟(Ⅰ8);
7-[5-(1-哌啶基)戊氧基]-3-乙酰香豆素肟(Ⅰ9);
7-[6-(1-哌啶基)己氧基]-3-乙酰香豆素肟(Ⅰ10);
7-[2-(4-甲基-1-哌嗪基)乙氧基]-3-乙酰香豆素肟(Ⅰ11);
7-[3-(4-甲基-1-哌嗪基)丙氧基]-3-乙酰香豆素肟(Ⅰ12);
7-[4-(4-甲基-1-哌嗪基)丁氧基]-3-乙酰香豆素肟(Ⅰ13);
7-[5-(4-甲基-1-哌嗪基)戊氧基]-3-乙酰香豆素肟(Ⅰ14);
7-[6-(4-甲基-1-哌嗪基)己氧基]-3-乙酰香豆素肟(Ⅰ15);
7-[2-(4-乙基-1-哌嗪基)乙氧基]-3-乙酰香豆素肟(Ⅰ16);
7-[3-(4-乙基-1-哌嗪基)丙氧基]-3-乙酰香豆素肟(Ⅰ17);
7-[4-(4-乙基-1-哌嗪基)丁氧基]-3-乙酰香豆素肟(Ⅰ18);
7-[5-(4-乙基-1-哌嗪基)戊氧基]-3-乙酰香豆素肟(Ⅰ19);
7-[6-(4-乙基-1-哌嗪基)己氧基]-3-乙酰香豆素肟(Ⅰ20);
7-[2-(4-羟乙基-1-哌嗪基)乙氧基]-3-乙酰香豆素肟(Ⅰ21);
7-[3-(4-羟乙基-1-哌嗪基)丙氧基]-3-乙酰香豆素肟(Ⅰ22);
7-[4-(4-羟乙基-1-哌嗪基)丁氧基]-3-乙酰香豆素肟(Ⅰ23);
7-[5-(4-羟乙基-1-哌嗪基)戊氧基]-3-乙酰香豆素肟(Ⅰ24);
7-[6-(4-羟乙基-1-哌嗪基)己氧基]-3-乙酰香豆素肟(Ⅰ25);
7-羟基-8-(1-哌啶基甲基)-3-乙酰基香豆素肟(Ⅱ1);
7-羟基-8-(1-吗啡啉基甲基)-3-乙酰基香豆素肟(Ⅱ2);
7-羟基-8-(4-甲基-1-哌嗪基甲基)-3-乙酰基香豆素肟(Ⅱ3);
7-羟基-8-(4-乙基-1-哌嗪基甲基)-3-乙酰基香豆素肟(Ⅱ4);
7-羟基-8-(4-羟乙基-1-哌嗪基甲基)-3-乙酰基香豆素肟(Ⅱ5)
7-羟基-8-二乙胺基甲基-3-乙酰基香豆素肟(Ⅱ6);。
下面药理实验中涉及的化合物代号等同于此处代号所对应的化合物。
本发明化合物及其与可药用酸的盐构成了本发明的完整部分;可药用酸中有盐酸,氢溴酸,硫酸,磷酸,乙酸,乳酸,丙二酸,琥珀酸,戊二酸,富马酸,酒石酸,马来酸,柠檬酸,抗坏血酸,甲磺酸,樟脑酸,草酸等。
本发明的另一目的在于提供本发明通式Ⅰ、Ⅱ所述化合物的制备方法。
通式Ⅰ中所示的7-羟基-3-乙酰基香豆素肟类化合物通过下列方式制备:
以间苯二酚(1)为原料,通过Vilsmeier-Haack反应制备2,4-二羟基苯甲醛(2),再与乙酰乙酸乙酯经Knoevenagel反应制得7-羟基-3-乙酰基香豆素(3);在碱性条件下利用7-位羟基与二溴烷烃Br-(CH2)n-Br经Williamson反应得到中间体7-溴代烷氧基-3-乙酰基香豆素(4);化合物4与不同的有机胺经N-烃基化反应得到7-胺基烷氧基-3-乙酰基香豆素(5);再利用其羰基与盐酸羟胺反应,得到7-胺基烷氧基-3-乙酰香豆素肟衍生物(Ⅰ);合成路线如下:
Reagents and conditions:(i)1)DMF,POCl3,MeCN,~0℃,6h;2)H2O,80℃,0.5h;(ii)Ethyl Acetoacetate,HAc,Piperidine,EtOH,30℃,10h;(iii)Br-(CH2)n-Br,DMF,K2CO3,50℃,4h;(iv)amines,MeCN,60℃,4h;(v)NH2OH.HCl,EtOH,pyridine,60℃.
其中,n和R的定义如前所述。
通式Ⅱ中所示的7-羟基-3乙酰基香豆素肟类化合物通过下列方式制备:
以间苯二酚(1)为原料,经Vilsmeier-Haack反应制备2,4-二羟基苯甲醛,再与乙酰乙酸乙酯经Knoevenagel反应制得7-羟基-3-乙酰基香豆素;通过曼尼希反应,在7-羟基-3-乙酰基香豆素的8-位引入胺甲基,再对其羰基肟化,得到7-羟基-8-胺甲基-3-乙酰香豆素肟衍生物(Ⅱ);合成路线如下:
Reagents and conditions:(i)1)DMF,POCl3,MeCN,~0℃,6h;2)H2O,80℃,0.5h;(ii)Ethyl Acetoacetate,HAc,Piperidine,EtOH,30℃,10h;(iii)amines,(HCHO)n,95%EtOH,85℃,6h.(iv)NH2OH.HCl,EtOH,pyridine,60℃.
这些中间体或目标化合物均可按照常规分离技术加以纯化,并且根据需要将其转化为与可药用酸的加成盐。
本发明的进一步目的在于提供一种含有效量的本发明通式Ⅰ、Ⅱ化合物和药学上可接受的载体或辅料的药物组合物。
本发明的再一目的是提供本发明通式Ⅰ、Ⅱ化合物在制备预防或治疗与血小板聚集有关的心脑血管系统疾病的药物中的应用。
本发明化合物对抗血小板聚集活性的药理实验方法与结果如下:
实验方法:取雄性家兔20只,20%乌拉坦腹腔注射麻醉后,手术分离颈总动脉取血,用3.8%枸橼酸钠(1:9)作为抗凝剂,取出的血液静置5分钟,常温状态下1000r/min离心10分钟,取上清为富血小板血浆(PRP),剩余部分再以3000r/min离心15分钟,取上清为贫血小板血浆(PPP),血小板聚集仪提前开机预热10min至37℃,用300μLPPP调零。然后在测试杯中加入240μLPRP加30μL受试药(终浓度100μg/mL、10μg/mL、1μg/mL、0.1μg/mL、0.01μg/mL)预温5min,以30μLADP和胶原为诱导剂(ADP终浓度为25μmol/L、胶原终浓度为10μg/mL、花生四烯酸终浓度为0.5mmol/L、凝血酶终浓度为1U/ml)。观察记录6min内最大聚集率,用0.1%DMSO作空白对照,阿司匹林为阳性对照(阿司匹林终浓度为100μmol/L)。平行测定两次取平均值,计算各化合物对ADP、胶原、花生四烯酸和凝血酶诱导的血小板聚集的抑制率(AIR)。
测试结果:表1中列出了本发明部分化合物对不同诱导剂诱导家兔血小板聚集活性的数据,阳性对照药为阿司匹林。
表1本发明部分化合物对不同诱导剂诱导的血小板聚集的抑制活性(100μg/mL)
以上药理学数据显示,本发明涉及的7-羟基-3-乙酰基香豆素肟类化合物对不同诱导剂诱导的血小板聚集均具有一定的抑制作用,其中,绝大部分化合物对ADP和花生四稀酸诱导的血小板聚集有很强的抑制活性,部分化合物对胶原和凝血酶诱导的血小板聚集也显示很好的抑制活性。
具体实施方式:
下面通过实施例具体说明本发明的内容。在本发明中,以下所述的实例是为了更好的阐述本发明,并不是用来限制本发明的范围。
实施例1
2,4-二羟基苯甲醛(2)的合成
在500mL三颈烧瓶中,依次加入5mL乙腈和20mL N,N-二甲基甲酰胺(DMF)(0.260mol),冰水浴条件下不断搅拌,再将POCl3(20mL,0.218mol)逐滴缓慢加入到三颈烧瓶中。滴加完毕,继续搅拌1h。将35mL间苯二酚(20g,0.182mol)的乙腈溶液滴加到反应液中,搅拌4h,抽滤。滤饼置于250mL圆底烧瓶中,加入100mL水,80℃搅拌0.5h,冷却至25℃继续搅拌2.5h,抽滤,滤饼真空干燥,得浅粉色针状晶体16.23g,收率64.61%,m.p.134.9~135.8℃。
7-羟基-3-乙酰基香豆素(3)的合成
在250mL圆底烧瓶中,加入2,4-二羟基苯甲醛(3.45g,25mmol)、乙酰乙酸乙酯(3.84mL,30mmol)、2.48mL哌啶、0.1mL滴冰醋酸和40mL无水乙醇,30℃搅拌反应,TLC监测反应至完全。减压浓缩,残渣加入适量丙酮搅拌,抽滤,滤饼真空干燥,得黄色固体4.25g,收率83.3%,m.p.239.9~240.9℃。
7-溴代乙氧基-3-乙酰基香豆素(4)的合成
在100mL圆底烧瓶中,依次加入7-羟基-3-乙酰基香豆素(1.02g,5mmol)、无水碳酸钾(1.38g,10mmol)和10mLDMF,30℃搅拌反应30min,将1.3mL 1,2-二溴乙烷(15mmol)滴加到反应瓶中,升温至50℃加热搅拌,TLC监测反应进程。反应完全后,向反应液中加入100mL水,二氯甲烷(DCM)萃取(50mL×3)。有机相用饱和NaCl溶液洗涤(50mL×1),无水硫酸钠干燥。过滤,滤液减压浓缩。残渣加入适量DCM至全溶,再加入适量石油醚搅拌,低温条件下析晶。抽滤,滤饼干燥得黄色固体1.18g,收率76.0%,m.p.158.2~160.5℃。
7-[2-(1-吗啡啉基)乙氧基]-3-乙酰香豆素(5)的制备
在100mL圆底烧瓶中加入7-溴代乙氧基-3-乙酰基香豆素(297mg,1mmol)和3mL乙腈,60℃回流搅拌,待溶解完毕后加入吗啉(0.3mL,3mmol),TLC监测反应进程。反应完全,向反应液中加入100mL水,并用DCM萃取(50mL×3)。有机相用饱和NaCl溶液洗涤(50mL×1),无水硫酸钠干燥。过滤,滤液浓缩,柱层析分离[V(甲醇)∶V(二氯甲烷)=1∶80],得黄色固体243mg。收率76.6%,m.p.151.6~152.9℃。
7-[2-(1-吗啡啉基)乙氧基]-3-乙酰香豆素肟(I1)的制备
称取7-[2-(1-吗啡啉)乙氧基]-3-乙酰香豆素(0.317g,1mmol)于50mL圆底烧瓶中,加入3mL无水乙醇,60℃下搅拌使之充分溶解。向盐酸羟胺(0.139g,2mmol)中加入2.5mL吡啶,60℃下搅拌充分溶解后缓慢滴入7-[2-(1-吗啡啉)乙氧基]-3-乙酰香豆素的无水乙醇体系中,60℃搅拌反应,TLC监测反应进程。4h反应完全,停止反应,冷却至室温,旋蒸,柱层析分离[V(甲醇)∶V(二氯甲烷)=1∶40],得化合物255mg(淡黄色固体),收率76.6%,m.p.210~211.5℃,IR(KBr)ν/cm-1:3020,2938,1666,1105;ESI-MS(m/z):333.1472[M+H]+;1H NMR(600MHz,DMSO-d6)δ11.35(s,1H),8.04(s,1H),7.71(d,J=8.7Hz,1H),7.04(s,2.4Hz,1H),6.98(d,J=2.3Hz,1H),4.21(t,J=5.7Hz,2H),3.64-3.52(m,4H),2.72(t,J=5.6Hz,2H),2.48(d,J=4.1Hz,4H),2.07(s,3H)。HRMS,C17H20N2O5。
实施例2
参照实施例1合成2,4-二羟基苯甲醛和7-羟基-3-乙酰基-香豆素。
7-溴代戊氧基-3-乙酰基香豆素(4)的合成
在100mL圆底烧瓶中,依次加入7-羟基-3-乙酰基香豆素(1.02g,5mmol)、无水碳酸钾(1.38g,10mmol)和10mLDMF,30℃搅拌反应30min,将2.05mL 1,5-二溴戊烷(15mmol)滴加到反应瓶中,升温至50℃加热搅拌,TLC监测反应进程。反应完全后,向反应液中加入100mL水,二氯甲烷(DCM)萃取(50mL×3)。有机相用饱和NaCl溶液洗涤(50mL×1),无水硫酸钠干燥。过滤,滤液减压浓缩。残渣加入适量DCM至全溶,再加入适量石油醚搅拌,低温条件下析晶。抽滤,滤饼干燥得黄色固体1.43g,收率81.2%,m.p.115.5~117.2℃。
7-[5-(4-甲基-1-哌嗪基)戊氧基]-3-乙酰香豆素(5)的制备
在100mL圆底烧瓶中加入7-溴代戊氧基-3-乙酰基香豆素(353mg,1mmol)和3mL乙腈,60℃回流搅拌,待溶解完毕后加入4-甲基哌嗪(0.34mL,3mmol),TLC监测反应进程。反应完全,向反应液中加入100mL水,并用DCM萃取(50mL×3)。有机相用饱和NaCl溶液洗涤(50mL×1),无水硫酸钠干燥。过滤,滤液浓缩,柱层析分离[V(甲醇)∶V(二氯甲烷)=1∶80],得黄色固体266mg。收率71.5%,m.p.90.3~91.5℃。
7-[5-(4-甲基-1-哌嗪基)戊氧基]-3-乙酰香豆素肟(I14)的制备
称取7-[5-(4-甲基-1-哌嗪基)戊氧基]-3-乙酰香豆素(0.372g,1mmol)于50mL圆底烧瓶中,加入3mL无水乙醇,60℃下搅拌使之充分溶解。向盐酸羟胺(0.139g,2mmol)中加入2.5mL吡啶,60℃下搅拌充分溶解后缓慢滴入7-[5-(4-甲基哌嗪)戊氧基]-3-乙酰香豆素的无水乙醇体系中,60℃搅拌反应,TLC监测反应进程。4h反应完全,停止反应,冷却至室温,旋蒸,柱层析分离[V(甲醇)∶V(二氯甲烷)=1∶40],得化合物284mg(淡黄色固体),收率73.2%,m.p.151.3~152.0℃,IR(KBr)ν/cm-1:3023,2937,1668,1101;ESI-MS(m/z):373.2146[M+H]+;1H NMR(600MHz,DMSO-d6)δ11.34(s,1H),8.04(s,1H),7.71(d,J=8.7Hz,1H),7.02(s,1H),6.96(d,J=2.4Hz,1H),4.09(t,J=6.4Hz,2H),2.89-2.51(m,10H),2.40(s,3H),2.06(s,3H),1.75-1.64(m,2H),1.54-1.43(m,4H)。HRMS,C21H29N3O4。
实施例3
参照实施例1合成2,4-二羟基苯甲醛和7-羟基-3-乙酰基-香豆素。
7-溴代丙氧基-3-乙酰基香豆素(4)的合成
在100mL圆底烧瓶中,依次加入7-羟基-3-乙酰基香豆素(1.02g,5mmol)、无水碳酸钾(1.38g,10mmol)和10mLDMF,30℃搅拌反应30min,将1.5mL 1,3-二溴丙烷(15mmol)滴加到反应瓶中,升温至50℃加热搅拌,TLC监测反应进程。反应完全后,向反应液中加入100mL水,二氯甲烷(DCM)萃取(50mL×3)。有机相用饱和NaCl溶液洗涤(50mL×1),无水硫酸钠干燥。过滤,滤液减压浓缩。残渣加入适量DCM至全溶,再加入适量石油醚搅拌,低温条件下析晶。抽滤,滤饼干燥得黄色固体1.2g,收率74.0%,m.p.133.6~135.6℃。
7-[3-(4-羟乙基-1-哌嗪基)丙氧基]-3-乙酰香豆素(5)的制备
在100mL圆底烧瓶中加入7-溴代丙氧基-3-乙酰基香豆素(325mg,1mmol)和3mL乙腈,60℃回流搅拌,待溶解完毕后加入4-羟乙基哌嗪(0.38mL,3mmol),TLC监测反应进程。反应完全,向反应液中加入100mL水,并用DCM萃取(50mL×3)。有机相用饱和NaCl溶液洗涤(50mL×1),无水硫酸钠干燥。过滤,滤液浓缩,柱层析分离[V(甲醇)∶V(二氯甲烷)=1∶80],得黄色固体264mg。收率70.5%,m.p.133.2~134.7℃。
7-[3-(4-羟乙基-1-哌嗪基)丙氧基]-3-乙酰香豆素肟(I22)的制备
称取7-[3-(4-羟乙基哌嗪)丙氧基]-3-乙酰香豆素(0.374g,1mmol)于50mL圆底烧瓶中,加入3mL无水乙醇,60℃下搅拌使之充分溶解。向盐酸羟胺(0.139g,2mmol)中加入2.5mL吡啶,60℃下搅拌充分溶解后缓慢滴入7-[3-(4-羟乙基哌嗪)丙氧基]-3-乙酰香豆素的无水乙醇体系中,60℃搅拌反应,TLC监测反应进程。4h反应完全,停止反应,冷却至室温,旋蒸,柱层析分离[V(甲醇)∶V(二氯甲烷)=1∶40],得化合物289mg(淡黄色固体),收率74.3%,m.p.183.4~184.5℃,IR(KBr)ν/cm-1:3024,2938,1666,1173;ESI-MS(m/z):390.2049[M+H]+;1H NMR(600MHz,DMSO-d6)δ11.37(s,1H),7.98(s,1H),7.67(d,J=8.7Hz,1H),6.97(s,1H),6.94(d,J=2.3Hz,1H),4.53(s,1H),4.09(t,J=6.3Hz,2H),3.47(t,J=8.2Hz,2H),2.51-2.49(m,4H),2.45-2.33(m,8H),2.02(s,3H),1.87-1.76(m,2H)。HRMS,C20H27N3O5。
实施例4
参照实施例1合成2,4-二羟基苯甲醛和7-羟基-3-乙酰基-香豆素。
7-溴代丁氧基-3-乙酰基香豆素(4)的合成
在100mL圆底烧瓶中,依次加入7-羟基-3-乙酰基香豆素(1.02g,5mmol)、无水碳酸钾(1.38g,10mmol)和10mLDMF,30℃搅拌反应30min,将1.5mL 1,4-二溴丁烷(15mmol)滴加到反应瓶中,升温至50℃加热搅拌,TLC监测反应进程。反应完全后,向反应液中加入100mL水,二氯甲烷(DCM)萃取(50mL×3)。有机相用饱和NaCl溶液洗涤(50mL×1),无水硫酸钠干燥。过滤,滤液减压浓缩。残渣加入适量DCM至全溶,再加入适量石油醚搅拌,低温条件下析晶。抽滤,滤饼干燥得黄色固体1.29g,收率76.2%,m.p.124.5~126.2℃。
7-[4-(4-乙基-1-哌嗪基)丁氧基]-3-乙酰香豆素(5)的制备
在100mL圆底烧瓶中加入7-溴代丁氧基-3-乙酰基香豆素(339mg,1mmol)和3mL乙腈,60℃回流搅拌,待溶解完毕后加入4-乙基哌嗪(0.38mL,3mmol),TLC监测反应进程。反应完全,向反应液中加入100mL水,并用DCM萃取(50mL×3)。有机相用饱和NaCl溶液洗涤(50mL×1),无水硫酸钠干燥。过滤,滤液浓缩,柱层析分离[V(甲醇)∶V(二氯甲烷)=1∶80],得黄色固体270mg。收率72.7%,m.p.115.2~116.8℃。
7-[4-(4-乙基-1-哌嗪基)丁氧基]-3-乙酰香豆素肟(I18)的制备
称取7-[4-(4-乙基-1-哌嗪基)丁氧基]-3-乙酰香豆素(0.372g,1mmol)于50mL圆底烧瓶中,加入3mL无水乙醇,60℃下搅拌使之充分溶解。向盐酸羟胺(0.139g,2mmol)中加入2.5mL吡啶,60℃下搅拌充分溶解后缓慢滴入7-[4-(4-乙基哌嗪)丁氧基]-3-乙酰香豆素的无水乙醇体系中,60℃搅拌反应,TLC监测反应进程。4h反应完全,停止反应,冷却至室温,旋蒸,柱层析分离[V(甲醇)∶V(二氯甲烷)=1∶40],得化合物292mg(淡黄色固体),收率75.6%,m.p.135.8~136.9℃,IR(KBr)ν/cm-1:3023,2937,1668,1173;ESI-MS(m/z):388.2263[M+H]+;1H NMR(600MHz,DMSO-d6)δ11.36(s,1H),8.04(s,1H),7.71(d,J=8.7Hz,1H),7.01(s,1H),6.97(d,J=2.3Hz,1H),4.11(t,J=6.4Hz,2H),2.64-2.48(m,10H),2.06(s,3H),1.79-1.70(m,2H),1.62-1.54(m,2H),1.25-1.10(m,2H),1.08(t,J=7.2Hz,3H)。HRMS,C21H29N3O4。
实施例5
参照实施例1合成2,4-二羟基苯甲醛和7-羟基-3-乙酰基-香豆素。
7-溴代己氧基-3-乙酰基香豆素(4)的合成
在100mL圆底烧瓶中,依次加入7-羟基-3-乙酰基香豆素(1.02g,5mmol)、无水碳酸钾(1.38g,10mmol)和10mLDMF,30℃搅拌反应30min,将1.5mL 1,6-二溴己烷(15mmol)滴加到反应瓶中,升温至50℃加热搅拌,TLC监测反应进程。反应完全后,向反应液中加入100mL水,二氯甲烷(DCM)萃取(50mL×3)。有机相用饱和NaCl溶液洗涤(50mL×1),无水硫酸钠干燥。过滤,滤液减压浓缩。残渣加入适量DCM至全溶,再加入适量石油醚搅拌,低温条件下析晶。抽滤,滤饼干燥得黄色固体1.45g,收率79.2%,m.p.106.2~107.8℃。
7-[6-(1-哌啶)己氧基]-3-乙酰香豆素(5)的制备
在100mL圆底烧瓶中加入7-溴代己氧基-3-乙酰基香豆素(367mg,1mmol)和3mL乙腈,60℃回流搅拌,待溶解完毕后加入哌啶(0.3mL,3mmol),TLC监测反应进程。反应完全,向反应液中加入100mL水,并用DCM萃取(50mL×3)。有机相用饱和NaCl溶液洗涤(50mL×1),无水硫酸钠干燥。过滤,滤液浓缩,柱层析分离[V(甲醇)∶V(二氯甲烷)=1∶80],得黄色固体287mg。收率77.3%,m.p.101.4~102.9℃。
7-[6-(1-哌啶)己氧基]-3-乙酰香豆素肟(I10)的制备
称取7-[6-(1-哌啶)己氧基]-3-乙酰香豆素(0.371g,1mmol)于50mL圆底烧瓶中,加入3mL无水乙醇,60℃下搅拌使之充分溶解。向盐酸羟胺(0.139g,2mmol)中加入2.5mL吡啶,60℃下搅拌充分溶解后缓慢滴入7-[6-(1-哌啶)己氧基]-3-乙酰香豆素的无水乙醇体系中,60℃搅拌反应,TLC监测反应进程。4h反应完全,停止反应,冷却至室温,旋蒸,柱层析分离[V(甲醇)∶V(二氯甲烷)=1∶40],得化合物284mg(淡黄色固体),收率73.5%,m.p.162.3~163.9℃,IR(KBr)ν/cm-1:3021,2938,1663,1171;ESI-MS(m/z):387.2305[M+H]+;1H NMR(600MHz,DMSO-d6)δ11.35(s,1H),8.05(s,1H),7.72(d,J=8.7Hz,1H),7.02(d,J=2.2Hz,1H),6.97(s,1H),4.09(t,J=7.2Hz,2H),2.86(t,J=8.4Hz,2H),2.32(t,J=7.6Hz,4H),2.06(s,3H),1.37-1.31(m,2H),1.30-1.22(m,12H)。HRMS,C22H30N2O4。
实施例6
参照实施例1合成2,4-二羟基苯甲醛和7-羟基-3-乙酰基-香豆素。
7-羟基-8-(1-吗啉基甲基)-3-乙酰基香豆素(6)的制备
在50ml圆底烧瓶中,加入612mg(3mmol)7-羟基-3-乙酰基香豆素、540mg(18mmol)多聚甲醛和25mL 95%乙醇,85℃搅拌反应,搅拌30min。再向反应液中加入0.53mL(18mmol)吗啡啉,TLC监测反应进程。反应完毕,减压浓缩,柱层析[V(乙酸乙酯):V(石油醚)=1:1],得561.3mg淡黄色固体,产率:61.7%,m.p.204.3~204.9℃。
7-羟基-8-(1-吗啉基甲基)-3-乙酰基香豆素肟(Ⅱ1)的制备
称取7-羟基-8-(1-吗啉基甲基)-3-乙酰基香豆素(0.303g,1mmol)于50mL圆底烧瓶中,加入3mL无水乙醇,60℃下搅拌使之充分溶解。向盐酸羟胺(0.139g,2mmol)中加入2.5mL吡啶,60℃下搅拌充分溶解后缓慢滴入7-羟基-8-(1-吗啉甲基)-3-乙酰基香豆素的无水乙醇体系中,60℃搅拌反应,TLC监测反应进程。4h反应完全,停止反应,冷却至室温,旋蒸,柱层析分离[V(甲醇)∶V(二氯甲烷)=1∶40],得化合物230mg(淡黄色固体),收率72.3%,m.p.182.3~193.5℃,IR(KBr)ν/cm-1:3021,2938,1663,1171;ESI-MS(m/z):319.1271[M+H]+;1H NMR(600MHz,DMSO-d6)1H NMR(400MHz,DMSO)δ11.37(s,1H),8.03(s,1H),7.72(d,J=8.2Hz,1H),7.19(d,J=8.6Hz,1H),4.38(s,2H),3.86(t,J=7.6Hz,4H),3.49(t,J=8.4Hz,4H),2.07(s,3H).。HRMS,C16H18N2O5。
Claims (10)
3.根据权利要求1所述的通式Ⅰ化合物或其药学上可接受的盐,其特征在于:
n为2~6的整数;R代表氨基、2-氨基乙胺基、2-乙胺基乙胺基、苯胺基、苄胺基、苯乙胺基、二甲胺基、二乙胺基、二丙胺基、二正丁胺基、四氢吡咯基、哌啶基、吗啡啉基、哌嗪基、4-甲基哌啶基、N-甲基哌嗪基、N-乙基哌嗪基、N-苄基哌嗪基或4-羟乙基哌嗪基。
4.根据权利要求2所述的通式Ⅱ化合物或其药学上可接受的盐,其特征在于:
R代表氨基、2-氨基乙胺基、2-乙胺基乙胺基、苯胺基、苄胺基、苯乙胺基、二甲胺基、二乙胺基、二丙胺基、二正丁胺基、四氢吡咯基、哌啶基、吗啡啉基、哌嗪基、4-甲基哌啶基、N-甲基哌嗪基、N-乙基哌嗪基、N-苄基哌嗪基或4-羟乙基哌嗪基。
5.根据权利要求1所述的通式Ⅰ化合物或其药学上可接受的盐,其特征在于:
n为2~6的整数;
R代表2-乙胺基乙胺基、苄胺基、苯乙胺基、二甲胺基、二乙胺基、四氢吡咯基、哌啶基、吗啡啉基、哌嗪基、N-甲基哌嗪基、N-乙基哌嗪基、N-苄基哌嗪基或4-羟乙基哌嗪基。
6.根据权利要求2所述的通式Ⅱ化合物或其药学上可接受的盐,其特征在于:
R代表2-乙胺基乙胺基、苄胺基、苯乙胺基、二甲胺基、二乙胺基、四氢吡咯基、哌啶基、吗啡啉基、哌嗪基、N-甲基哌嗪基、N-乙基哌嗪基、N-苄基哌嗪基或4-羟乙基哌嗪基。
7.权利要求1所述的通式Ⅰ化合物的制备方法,其特征在于:
以间苯二酚(1)为原料,通过Vilsmeier-Haack反应制备2,4-二羟基苯甲醛(2),再与乙酰乙酸乙酯经Knoevenagel反应制得7-羟基-3-乙酰基香豆素(3);在碱性条件下利用7-位羟基与二溴烷烃Br-(CH2)n-Br经Williamson反应得到中间体7-溴代烷氧基-3-乙酰基香豆素(4);化合物4与不同的有机胺经N-烃基化反应得到7-胺基烷氧基-3-乙酰基香豆素(5);再利用其羰基与盐酸羟胺反应,得到7-胺基烷氧基-3-乙酰香豆素肟衍生物(Ⅰ);合成路线如下:
Reagents and conditions:(i)1)DMF,POCl3,MeCN,~0℃,6h;2)H2O,80℃,0.5h;(ii)Ethyl Acetoacetate,HAc,Piperidine,EtOH,30℃,10h;(iii)Br-(CH2)n-Br,DMF,K2CO3,50℃,4h;(iv),amines,MeCN,60℃,4h;(v)NH2OHHCl,EtOH,pyridine,60℃.
其中,n和R的定义如权利要求1所述。
8.权利要求2所述的通式Ⅱ化合物的制备方法,其特征在于:
以间苯二酚(1)为原料,经Vilsmeier-Haack反应制备2,4-二羟基苯甲醛,再与乙酰乙酸乙酯经Knoevenagel反应制得7-羟基-3-乙酰基香豆素;通过曼尼希反应,在7-羟基-3-乙酰基香豆素的8-位引入胺甲基,再对其羰基肟化,得到7-羟基-8-胺甲基-3-乙酰香豆素肟衍生物(Ⅱ);合成路线如下:
Reagents and conditions:(i)1)DMF,POCl3,MeCN,~0℃,6h;2)H2O,80℃,0.5h;(ii)Ethyl Acetoacetate,HAc,Piperidine,EtOH,30℃,10h;(iii)amines,(HCHO)n,95%EtOH,85℃,6h.(iv)NH2OH.HCl,EtOH,pyridine,60℃.
其中,R的定义如权利要求2所述。
9.一种药物组合物,其中含有治疗有效量的权利要求1所述的通式Ⅰ化合物或权利要求2所述的通式Ⅱ化合物或其药学上可接受的盐。
10.权利要求1所述的通式Ⅰ化合物或权利要求2所述的通式Ⅱ化合物或其药学上可接受的盐在制备预防或治疗与血小板聚集有关的心脑系统疾病的药物中的用途,其中,心脑系统疾病是心肌梗死、心绞痛、心律失常、冠心病、脑缺血、中风、脑梗死或缺血性神经退行性疾病。
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