Irreversible inhibition of delta 5-3-oxosteroid isomerase by 2-substituted progesterones.

Abstract

2 alpha-Cyanoprogesterone (I) and 2-hydroxymethyleneprogesterone (II) were synthesized and screened as irreversible active-site-directed inhibitors of the delta 5-3-oxosteroid isomerase (EC 5.3.3.1) from Pseudomonas testosteroni. Both compounds were found to inhibit the purified bacterial enzyme in a time-dependent manner. In either case the inactivated… (More)

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