Weeks CM, Strong PD, Daux WL, Vickery LE. The molecular structure of (20R)-20-phenyl-5-pregnene-3 beta, 20-diol, an inhibitor of cholesterol conversion to pregnenolone.
Steroids 1982;
40:359-68. [PMID:
7184208 DOI:
10.1016/0039-128x(82)90047-2]
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Abstract
The crystal and molecular structure of (20R)-20-phenyl-5-pregnene-3 beta, 20-diol hemihydrate has been determined by X-ray analysis in order to establish the configuration and conformation at C(20). Interest in this compound was stimulated by its high affinity inhibitory binding to cytochrome P-450SCC, the enzyme which catalyzes the biosynthesis of pregnenolone (3 beta-hydroxy-5-pregnen-20-one) from cholesterol. The results of the analysis suggest a possible conformation for the cholesterol side chain in the enzyme complex.
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