Xanthine derivatives, their preparation and pharmaceutical compositions containing them
申请人:BEECHAM - WUELFING GmbH & Co. KG
公开号:EP0260127A2
公开(公告)日:1988-03-16
A compound of formula (I):
or a pharmaceutically acceptable salt thereof, wherein R₁ and R₂ are independently n-butyl, -(CH₂)₂CHOHCH₃, -(CH₂)₂CHOHCH₂OH, -(CH₂)₂COCH₃ or -(CH₂)₂C(OR₄)(OR₅)CH₃ where R₄ and R₅ are each C1-4 alkyl or together are C2-4 polymethylene, provided that R₁ and R₂ are not both n-butyl, and R₃ is -CH₂CHOHCH₃, -CH₂COCH₃ or -CH₂C(OR₆)(OR₇)CH₃ where R₆ and R₇ are each C1-4 alkyl or together are C2-4 polymethylene.
一种式(I)化合物
或其药学上可接受的盐,其中 R₁ 和 R₂ 独立地为正丁基、-(CH₂)₂CHOHCH₃、-(CH₂)₂CHOHCH₂OH、-(CH₂)₂COCH₃或-(CH₂)₂C(OR₄)(OR₅)CH₃,其中 R₄ 和 R₅ 各自为 C1-4 烷基或共同为 C2-4 聚亚甲基、条件是 R₁ 和 R₂ 并非都是正丁基,且 R₃ 是 -CH₂CHOHCH₃、-CH₂CH₃ 或 -CH₂C(OR₆)(OR₇)CH₃ 其中 R₆ 和 R₇ 各自是 C1-4 烷基或合在一起是 C2-4 聚亚甲基。