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EP0405421A3 Anthraquinone derivatives and preparation thereof 失效
蒽醌衍生物及其制备方法

Anthraquinone derivatives and preparation thereof
摘要:
A compound of the formula:
wherein
R¹ is hydrogen, hydroxy or acyloxy,
R² is hydrogen or acyl,
R³ is acyl,
R⁴ is hydrogen or acyl,
R⁵ is hydrogen or acyl,
R⁶ is hydrogen or acyl, and
R⁷ is hydrogen or acyl,
and pharmaceutically acceptable salt thereof, processes for the preparation and pharmaceutical compositions comprising them as an active ingredient in association with a pharmaceutically acceptabel, substantially non-toxic carrier or excipient. The invention also comprises biologically pure cultures of the microorganisms Streptomyces sp. No. 89009 (FERM BP-2475) and Pseudomonas cepacia No. 97 (FERM BP-2945).
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