Chemical Name : 3,3-dimethoxy-7α-methyl-19-nor-17α-pregn-5(10)-en-20-yn-17-ol (as per EP)

Smiles : C#C[C@]1(O)CC[C@@]2([H])[C@]3([H])[C@H](C)CC4=C(CCC(OC)(OC)C4)[C@@]3([H])CC[C@]12C