A-Norpregn-20-yne-2,17-diol,2-ethynyl-, bis(methyl butanedioate), (2b,5a,17a)-; AF 160; Butanedioic acid,1,7-diethynylhexadecahydro-8a,10a-dimethyldicyclopenta[a,f]naphthalene-1,7-diyldimethyl ester, [1R-(1a,3ab,3ba,5ab,7a,8aa,8bb,10aa)]-
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