[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][=Branch1][C][=O][C@H1][C][C][C@@H1][C@@][Ring1][Branch1][Branch2][Ring1][#Branch1][C][C][C@H1][C@H1][Ring1][=Branch1][C][C][C][=C][C@H1][Branch1][=Branch2][C][C][C@][Ring1][#Branch2][Ring1][=Branch1][C][O][C]"}, {"from": "gpt", "value": "The molecule is a 3beta-hydroxy steroid that is 4-pregnen-3beta-ol substituted by an oxo group at position 20. It is a 3beta-hydroxy steroid, a 20-oxo steroid and a C21-steroid. It is functionally related to a progesterone."}]