申请人:BEECHAM GROUP PLC
公开号:EP0338723A1
公开(公告)日:1989-10-25
Novel compounds of formula (I), a process for their preparation, and their use as pharmaceutical agents are described:
wherein R₁ represents
in which each of p and q independently represents an integer of 2 to 4, r represents an integer of 2 to 4, s represents 1 or 2 and t represents 0 or 1;
R₂ is a group OR₄, where R₄ is C₁₋₄ alkyl, C₂₋₄ alkenyl, C₂₋₄ alkynyl, a group OCOR₅ where R₅ is hydrogen or R₄, or a group NHR₆ or NR₇R₈ where R₆, R₇ and R₈ are independently C₁₋₂ alkyl; and
R₃ is hydrogen or C₁₋₄ alkyl, subject to the proviso that when R₂ is a group OCOR₅ or a group NHR₆, R₃ is C₁₋₄ alkyl.
本研究描述了式 (I) 的新型化合物、其制备方法及其作为药剂的用途:
其中 R₁ 代表
其中 p 和 q 各自独立地代表 2 至 4 的整数,r 代表 2 至 4 的整数,s 代表 1 或 2,t 代表 0 或 1;
R₂ 是基团 OR₄,其中 R₄ 是 C₁₋₄ 烷基、C₂₋₄ 烯基、C₂₋₄ 烷炔基、基团 OCOR₅(其中 R₅ 是氢或 R₄)或基团 NHR₆ 或 NR₇(其中 R₆、R₇ 和 R₈ 独立地是 C₁₋₂ 烷基);以及
R₃ 是氢或 C₁₋₄ 烷基,但当 R₂ 是基团 OCOR₅ 或基团 NHR₆ 时,R₃ 是 C₁₋₄ 烷基。