[{"from": "human", "value": "Describe this molecule. [C][C@@H1][C@@H1][Branch2][Branch1][=Branch2][C][C][C@][Branch2][Branch1][C][C@H1][Ring1][=Branch1][C][C][=Branch1][C][=O][C][=C][Ring1][#Branch1][C][=Branch1][C][=O][C][C@][Branch2][Ring1][N][C@H1][Ring1][#Branch1][C][C][C@@H1][Ring1][Branch1][C@H1][Branch1][C][C][C][C][C][=Branch1][C][=C][C][Branch1][C][C][C][=Branch1][C][=O][O][C][C][O]"}, {"from": "gpt", "value": "The molecule is a steroid acid that is ergosta-8,24(28)-dien-26-oic acid substituted by a hydroxy group at position 3, a methyl group at position 4 and oxo groups at positions 7 and 11 (the 3alpha,4alpha,5alpha stereoisomer). Isolated from Antrodia cinnamomea and Antrodia camphorata, it exhibits cytotoxic, anticholinergic and antiserotonergic activities. It has a role as a metabolite, an antineoplastic agent, a cholinergic antagonist and a serotonergic antagonist. It is an 11-oxo steroid, a 7-oxo steroid, a 3alpha-hydroxy steroid, a steroid acid and a monocarboxylic acid."}]