[{"from": "human", "value": "Provide a description of this molecule. [C][C][C][C][C][C][C][C][/C][=C][/C][C][C][C][C][C][C][C][=Branch1][C][=O][O][C][Branch1][=N][C][N][C][=Branch1][C][=O][C][=C][Branch1][C][C][C][C][=C][C][=Branch1][C][=O][C][=N][C][=C][C][=C][Ring1][=Branch1][C][Ring1][O][=N][C][=C][C][=C][C][=C][Ring1][#Branch2][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is an alkaloid ester obtained by formal condensation of cystodytin D with elaidic acid. It is isolated from the Okinawan marine tunicate Cystodytes dellechiajei and exhibits cytotoxicity against human epidermoid carcinoma KB cells. It has a role as a metabolite and an antineoplastic agent. It is an enamide, an enone, an organic heterotetracyclic compound, an alkaloid ester and a secondary carboxamide. It is functionally related to a 3-methylbut-2-enoic acid, an elaidic acid and a cystodytin D."}]