洛克化工
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(1α,2β,3β,5Z,7E,20S)-1,3-bis[(1,1-dimethylethyl)dimethyl-silyloxy]-2-[3-[(1,1-dimethylethyl)dimethylsilyloxy]propoxy]-9,10-secopregna-5,7,10(19)-triene-20-methyl 4-methylbenzenesulfonate
(1α,2β,3β,5Z,7E,20S)-1,3-bis[(1,1-dimethylethyl)dimethyl-silyloxy]-2-[3-[(1,1-dimethylethyl)dimethylsilyloxy]propoxy]-9,10-secopregna-5,7,10(19)-triene-20-methyl 4-methylbenzenesulfonate
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