(3S,5S,8R,9S,10S,13S,14S,17R)-17-Ethynyl-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthrene-3,17-diol

18-甲基美雌醇

1-cyclohex-3-enyl-prop-2-yn-1-ol

optically inactive 3-methyl-1t-(2,2,6-trimethyl-cyclohexen-(5)-yl)-penten-(1)-yn-(4)-ol-(3)