申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0307115A1
公开(公告)日:1989-03-15
A phenol ester of xamoterol of the formula:
wherein X is a methylene radical or a direct bond,
R¹ is a hydrogen atom or an alkyl or alkenyl radical of 3 to 8 carbon atoms, and
R² and R³, which may be the same or different, are each a 1-4C alkyl radical;
provided that
(i) when X is a direct bond, either R¹ is a hydrogen atom and R² and R³ are each a 2-4C alkyl radical, or R¹ is a 3-8C alkyl or alkenyl radical and R² and R³ are each a methyl radical; or
(ii) when X is a methylene radical, R¹ is an allyl radical or a 5-7C alkyl radical, and R² and R³ are each a methyl radical; and the pharmaceutically acceptable acid addition salts thereof.
一种公式为的萘酚酯类化合物:其中X是亚甲基基团或直接键,R¹是氢原子或由3至8个碳原子组成的烷基或烯基基团,R²和R³可以相同也可以不同,每个都是1-4碳的烷基基团;前提是(i) 当X是直接键时,要么R¹是氢原子且R²和R³分别是2-4碳的烷基基团,要么R¹是3-8碳的烷基或烯基基团且R²和R³分别是甲基基团;或者(ii) 当X是亚甲基基团时,R¹是烯丙基基团或5-7碳的烷基基团,R²和R³分别是甲基基团;以及其药用可接受的酸盐。