[{"from": "human", "value": "Describe 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][=Branch1][C][=O][C][=C][C@][Ring1][O][Ring1][#Branch1][C][C]"}, {"from": "gpt", "value": "The molecule is a 3-oxo Delta(4)-steroid that is progesterone which has been oxidised to introduce a double bond between positions 1 and 2. It is a 20-oxo steroid and a 3-oxo-Delta(1),Delta(4)-steroid. It is functionally related to a progesterone. It derives from a hydride of a steroid fundamental parent."}]