申请人:Takeda Chemical Industries, Ltd
公开号:US03943169A1
公开(公告)日:1976-03-09
The present invention relates to a compound of the formula: ##SPC1## Wherein R.sub.1 is an alkyl group of 1 to 4 carbons, an alkoxy group of 1 to 4 carbons or hydroxyl, and R.sub.2 and R.sub.3 are either the same or different and may be an alkyl group of 1 to 4 carbons, an alkoxy group of 1 to 4 carbons, hydroxyl, halogen or an alkylthio group of 1 to 4 carbons, or they are, connecting with each other, an alkylenedioxy group of 1 to 3 carbons, with the proviso that when R.sub.1 is an alkoxy group, at least one of R.sub.2 and R.sub.3 is an alkoxy group or an alkylthio group, or R.sub.2 and R.sub.3 are, connecting with each other, an alkylenedioxy group; when R.sub.1 is an alkyl group or hydroxyl, R.sub.2 and R.sub.3 are the same or different and may be an alkoxy group, an alkylthio group or, connecting with each other, an alkylene dioxy group; when R.sub.2 and R.sub.3 are methoxy, R.sub.1 is an alkyl group of 2 or 3 carbons, an alkoxy group of 2 to 4 carbons or hydroxyl, and when R.sub.2 is methyl and R.sub.3 is methoxy, R.sub.1 is an alkoxy group of 2 to 4 carbons or its pharmaceutically acceptable salts. The present invention also provides for a method of preparing the aforementioned compounds. The present compounds are characterized by exhibiting strong spasmolytic or relaxing action on the gall bladder, the common biliary duct, as well as exhibiting strong choleric activity and low toxicity.
本发明涉及一种化合物,其化学式为:##SPC1## 其中,R.sub.1是1至4个碳原子的烷基,1至4个碳原子的烷氧基或羟基,R.sub.2和R.sub.3要么相同,要么不同,可以是1至4个碳原子的烷基,1至4个碳原子的烷氧基,羟基,卤素或1至4个碳原子的烷基硫基,或者它们连接在一起,形成1至3个碳原子的烷基二氧基基团,但是当R.sub.1是烷氧基时,R.sub.2和R.sub.3中至少有一个是烷氧基或烷基硫基,或者R.sub.2和R.sub.3连接在一起,形成烷基二氧基基团;当R.sub.1是烷基或羟基时,R.sub.2和R.sub.3可以相同或不同,可以是烷氧基,烷基硫基或连接在一起的烷基二氧基基团;当R.sub.2和R.sub.3是甲氧基时,R.sub.1是2或3个碳原子的烷基,2至4个碳原子的烷氧基或羟基,当R.sub.2是甲基且R.sub.3是甲氧基时,R.sub.1是2至4个碳原子的烷氧基或其药学上可接受的盐。本发明还提供了制备上述化合物的方法。该化合物表现出强烈的胆囊、胆总管的平滑肌松弛或舒张作用,以及强烈的胆汁作用和低毒性。