Tigestol

(17R)-19-Norpregn-5(10)-en-20-yn-17-ol

(17R)-19-Norpregn-5(10)-ene-20-yn-17-ol

(8R,9S,13S,14S,17R)-17-ethynyl-13-methyl-2,3,4,6,7,8,9,11,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthren-17-ol