[{"from": "human", "value": "Please give me some details about this molecule. [C][C@H1][C][C@H1][Branch2][Ring2][=N][C@H1][Branch2][Ring2][Branch2][O][C@H1][Ring1][=Branch1][C][/C][=C][Branch1][C][\\C][/C][=C][/C@@H1][C@H1][Branch2][Ring1][=Branch1][C@][Branch1][Branch1][C][O][Ring1][Ring1][C@H1][Branch1][O][C@@][Branch1][Ring2][O][Ring1][Branch2][Branch1][C][C][O][O][O][C][N][C][=Branch1][C][=O][/C][=C][\\C@H1][Branch1][C][C][O][C][=Branch1][C][=O][C]"}, {"from": "gpt", "value": "The molecule is a spiro-epoxide with potent cytotoxic activity against human tumour cells. It is isolated from Pseudomonas sp. no.2663. It has a role as an antineoplastic agent and a bacterial metabolite. It is an acetate ester, a cyclic hemiketal, a member of pyrans, a secondary alcohol, a monocarboxylic acid amide and a spiro-epoxide."}]