[{"from": "human", "value": "Describe this molecule. [C][C@@H1][Branch1][=Branch2][C][C][C][C][Branch1][C][C][C][C@@H1][C][C][C@][Branch2][Ring2][#Branch1][C@][Ring1][Branch1][Branch2][Ring1][S][C][C][C@H1][C@H1][Ring1][=Branch1][C][C][=C][C@@][Ring1][=Branch1][Branch1][P][C@@H1][Branch1][=N][C][C][=Branch1][C][=O][C][Ring1][#Branch1][Branch1][C][C][C][O][C][C][C]"}, {"from": "gpt", "value": "The molecule is a tirucallane triterpenoid that is (13alpha,14beta,17alpha,20S)-lanost-5-ene substituted by an oxo group at position 3 and a beta-hydroxy group at position 1. It has a role as a plant metabolite. It is a cyclic terpene ketone, a secondary alcohol, a tirucallane triterpenoid and a 3-oxo-Delta(5)-steroid."}]