[{"from": "human", "value": "Please give me some details about this molecule. [C][C][=Branch1][C][=O][C@@][C@@H1][Branch2][Ring1][S][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][O][C][Branch1][Branch1][O][Ring2][Ring1][#Branch1][Branch1][C][C][C][=C][C][=C][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a 20-oxo steroid that is the cyclic ketal resulting from the formal condensation of the hydroxy groups of algestone with acetophenone. It is a 3-oxo-Delta(4) steroid, a 20-oxo steroid and a cyclic ketal. It is functionally related to an algestone."}]