申请人:DAINIPPON INK AND CHEMICALS, INC.
公开号:EP0933378A1
公开(公告)日:1999-08-04
An object is to provide: novel quinolinone glycosides which are useful as medicines; processes for producing the quinolinone glycosides; intermediates for synthesis; and medicines, and particularly anti-allergic agents, which comprise the quinolinone glycoside as an active ingredient. The object is achieved by: a quinolinone glycoside or a physiologically acceptable salt thereof; processes for producing this quinolinone glycosides; intermediates for synthesis; and medicines, and particularly anti-allergic agents, which comprise the quinolinone glycoside as an active ingredient; the quinolinone glycoside being expressed by general formula (I):
(wherein, in the formula, each of R1 and R2 is a hydrogen atom or a glycosyl group selected from the group consisting of a glucuronyl group, a glucosyl group, a galactosyl group and a mannosyl group, and at least one of R1 and R2 is a glycosyl group in which a hydroxyl group in the glycosyl group is unprotected or protected with an acyl group having a carbon number of 2 to 7 or a benzyl group);
目的是提供:可用作药物的新型喹啉酮苷;生产这种喹啉酮苷的工艺;用于合成的中间体;以及包含这种喹啉酮苷作为有效成分的药物,特别是抗过敏药物。本发明的目的是通过以下方式实现的:一种喹啉酮苷或其生理上可接受的盐;生产这种喹啉酮苷的工艺;合成的中间体;以及药物,特别是抗过敏剂,其中包含喹啉酮苷作为有效成分;喹啉酮苷由通式(I)表示:
(其中,R1 和 R2 各为氢原子或糖基,选自葡萄糖醛酸基、葡萄糖基、半乳糖基和甘露糖基组成的组,且 R1 和 R2 中至少有一个为糖基,其中糖基中的羟基未被保护或被碳原子数为 2-7 的酰基或苄基保护);