Etonogestrel Impurity 14

Chemical Name: (8S,9S,10R,13S,14S,17R)-13-ethyl-17-ethynyl-3-methoxy-11-methylene-2,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-ol

Smile: O[C@@]1(C#C)CC[C@@]([C@]1(CC)C2)([H])[C@]3([H])CC=C4C=C(OC)CC[C@]4([H])[C@@]3([H])C2=C