GINKGOLIDE B DERIVATIVE AND SALT THEREOF, PREPARATION METHOD THEREFOR AND USE THEREOF
申请人:Huiling Jinxin (Shanghai) Pharmaceutical
Technology Co., Ltd
公开号:EP3964514A1
公开(公告)日:2022-03-09
The present invention relates to the technical field of medicine, and relates to derivatives represented by formula 1 and formula 2 in which a carboxylic acid group is introduced into the structure of Ginkgolide B by means of a hydroxyl group at the 10-position and ester derivatives of carboxylic acid groups, as well as pharmaceutically acceptable organic or inorganic salts. The present invention uses ginkgolide B as a parent body; ginkgolide B is prepared by means of chemical structure modification so as to achieve the goals of improving solubility, increasing bioavailability and enhancing a healing efficacy. The prepared compound and carboxylate salts thereof have significant platelet activating factor antagonism, an anticoagulant effect and an anti-acute cerebral ischemia effect, and can be used for preparing a drug for preventing and treating ischemic stroke, thrombosis, angina pectoris, cardiopulmonary infarction, as well as inflammation, asthma and other diseases related to a platelet activating factor. (1), (2)
本发明涉及医药技术领域,涉及银杏内酯B结构中通过10位羟基引入羧酸基团的式1和式2代表的衍生物和羧酸基团的酯衍生物,以及药学上可接受的有机盐或无机盐。本发明以银杏内酯 B 为母体,通过化学结构修饰的方法制备银杏内酯 B,以达到改善溶解性、提高生物利用度和增强疗效的目的。制备的化合物及其羧酸盐具有显著的血小板活化因子拮抗作用、抗凝血作用和抗急性脑缺血作用,可用于制备预防和治疗缺血性中风、血栓形成、心绞痛、心肺梗塞以及炎症、哮喘等与血小板活化因子相关疾病的药物。(1), (2)