New Benzofuran derivatives, processes for the preparation thereof and pharmaceutical composition comprising the same
申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP0398142A1
公开(公告)日:1990-11-22
A compound of the formula :
wherein
R¹, R² and R³ are each lower alkyl,
R⁴ is hydrogen or hydroxy, and a heavy solid line means a single or a double bond,
provided that when R⁴ is hydrogen, then a heavy solid line means a double bond,
when R⁴ is hydroxy, then a heavy solid line means a single bond,
and its pharmaceutically acceptable salt, processes for their preparation and pharmaceutical composition comprising them in association with a pharmaceutically acceptable, substantially non-toxic carrier or excipient. The invention also relates to a biologically pure culture of the microorganism Paecilomyces sp. F-18826 (FERM BP-2322).
式中的化合物
其中
R¹、R² 和 R³ 各为低级烷基、
R⁴ 是氢或羟基,重实线表示单键或双键、
当 R⁴ 为氢时,重实线表示双键、
当 R⁴ 为羟基时,重实线表示单键、
及其药学上可接受的盐、其制备工艺以及由它们与药学上可接受的、基本上无毒的载体或赋形剂组成的药物组合物。本发明还涉及微生物 Paecilomyces sp. F-18826 的生物纯培养物(FERM BP-2322)。