(20α)-11,17α-Dimethoxy-18β-(3,4,5-trimethoxybenzoyloxy)-3,4-secoyohimban-16β-carboxylic acid methyl ester;(20α)-18β-(3,4,5-Trimethoxybenzoyloxy)-11,17α-dimethoxy-3,4-secoyohimban-16β-carboxylic acid methyl ester
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