发明授权
US3375167A 6-hydroxymethyl-3-oxo-4, 6-dienic steroids, acyl derivatives thereof, and process for preparing same 失效
6-羟甲基-3-氧代-4,6-二烯类固醇,其酰基衍生物及其制备方法

6-hydroxymethyl-3-oxo-4, 6-dienic steroids, acyl derivatives thereof, and process for preparing same
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