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(8R,9S,13S,14S,17S)-13-Methyl-17-(3-tritylsulfanyl-prop-1-ynyl)-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthrene-3,17-diol
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tert-Butyl-dimethyl-((8S,9S,13R,14S)-13-methyl-7,8,9,11,12,13,14,15-octahydro-6H-cyclopenta[a]phenanthren-3-yloxy)-silane
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tert-Butyl-dimethyl-((8R,9S,13S,14S,16R,17S)-13-methyl-6,8,9,11,12,13,14,15,16,17-decahydro-7H-20-oxa-cyclopropa[16,17]cyclopenta[a]phenanthren-3-yloxy)-silane
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(8R,9S,13S,14S,16R,17R)-3-(tert-Butyl-dimethyl-silanyloxy)-16-ethynyl-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-17-ol
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(8R,9S,13S,14S)-3-(tert-Butyl-dimethyl-silanyloxy)-13-methyl-16-vinylidene-6,7,8,9,11,12,13,14,15,16-decahydro-cyclopenta[a]phenanthren-17-one