[{"from": "human", "value": "Describe this molecule. [C][C@H1][C][=Branch1][C][=O][C][C][C@@H1][C@@][Ring1][#Branch1][Branch2][Ring2][#C][C][C][C@H1][C@][Ring1][=Branch1][Branch2][Ring2][Branch1][C][C][C@@][Branch2][Ring1][=C][C@@][Ring1][=Branch1][Branch2][Ring1][#Branch1][C][C][C@@][Branch1][S][C@H1][Ring1][=Branch1][C][C][Branch1][Branch1][C][C][Ring1][=Branch1][Branch1][C][C][C][C][=O][C][C][C][C]"}, {"from": "gpt", "value": "The molecule is a pentacyclic triterpenoid with formula C30H48O2, originally isolated from the leaves of Syzygium formosanum. It has a role as a plant metabolite and an antibacterial agent. It is a pentacyclic triterpenoid, a cyclic terpene ketone and an aliphatic aldehyde. It derives from a hydride of a friedelane."}]