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(2007/10/02)3β-(Benzoyloxy)-4,4-dimethyl-8α,14α-epoxy-5α-cholestan-7-one
3β-(Benzoyloxy)-4,4-dimethyl-7-oxo-5α-cholestane-14α-carbonitrile
methanesulfonyl chloride
3β-(Benzoyloxy)-7α-hydroxy-4,4-dimethyl-5α-cholestane-14α-carbonitrile
3β-(Benzoyloxy)-4,4-dimethyl-5α-cholest-7-ene