Chemical Name : 6β,17-dihydroxy-19-nor-17α-pregn-4-en-20-yn-3-one (as per EP)

Smiles : C[C@@]1([C@]2(O)C#C)[C@](CC2)([H])[C@@](C[C@@H](O)C3=CC4=O)([H])[C@]([C@@]3([H])CC4)([H])CC1