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  • Methanesulfonic acid (3S,8S,9S,10R,13S,14S,17R)-17-[(S)-1-((4R,5S)-5-isobutyl-2,2-dimethyl-[1,3]dioxolan-4-yl)-ethyl]-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester

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