SMILES: CC(=O)[C@]12[C@H](O1)C[C@@H]3[C@@]2(CC[C@H]4[C@H]3CC=C5[C@@]4(CC[C@@H](C5)O)C)C
Description: The molecule is an epoxy steroid that is pregnenolone which has an epoxy group whose oxygen is attached to the 16alpha and 17alpha-positions. It is a sterol, a 20-oxo steroid, a 3beta-hydroxy-Delta(5)-steroid, a C21-steroid and an epoxy steroid.