[{"from": "human", "value": "Provide a description of this molecule. [C][C@][C][C][C@@][Branch2][=Branch1][Branch1][C][C@H1][Ring1][=Branch1][C@@][Branch2][Branch1][N][C][C][=C][C][=Branch2][Ring2][=Branch2][=C][C][C@@H1][C@@][Ring1][=Branch1][Branch2][Ring1][#C][C][C][C@@H1][Branch1][Branch2][C][Ring1][=Branch1][Branch1][C][C][C][O][C][=Branch1][C][=O][/C][=C][/C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][C@][Ring2][Ring1][=N][Branch1][=Branch1][C][C][Ring2][Ring2][Branch1][C][C][Branch1][C][C][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a pentacyclic triterpenoid that is the cinnamate ester obtained by the formal condensation of trans-4-coumaric acid with D:C-friedoolean-7,9(11)-dien-3beta-ol-29-oic acid. It is isolated from the stems of Lagenaria siceraria and exhibits cytotoxic activity against human hepatoma SK-Hep 1 cells. It has a role as a metabolite and an antineoplastic agent. It is a pentacyclic triterpenoid, a monocarboxylic acid and a cinnamate ester. It is functionally related to a trans-4-coumaric acid and a D:C-friedoolean-7,9(11)-dien-3beta-ol-29-oic acid."}]