5a-Pregnan-20-one, 16a,17-epoxy-3b-hydroxy- (6CI,7CI,8CI);16,17-Epoxy-17H-cyclopenta[a]phenanthrene, pregnan-20-one deriv.; 16a,17a-Epoxy-3b-hydroxy-5a-pregnan-20-one;3b-Hydroxy-16a,17-epoxy-5a-pregnan-20-one
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