[{"from": "human", "value": "Could you provide a description of this molecule? [C][C@@H1][C@@H1][C][C@][Branch2][=Branch1][=N][C@@H1][Branch2][=Branch1][#Branch1][/C][=C][/C][=C][Branch2][Branch1][#C][/C][C][=C][C][=Branch1][=N][=C][Branch1][=Branch2][C][=Branch1][Ring2][=C][Ring1][=Branch1][O][C][Cl][N][Branch2][Ring2][Branch2][C][=Branch1][C][=O][C][C@@H1][Branch1][N][C@][Branch1][Branch2][C@H1][Ring2][Ring1][#Branch2][O][Ring1][Ring1][C][O][C][=Branch1][C][=O][C@H1][Branch1][C][C][N][Branch1][C][C][C][=Branch1][C][=O][C][C][S][C][\\C][O][C][Branch1][#Branch2][N][C][=Branch1][C][=O][O][Ring2][Ring2][#C][O]"}, {"from": "gpt", "value": "The molecule is an organic heterotetracyclic compound and 19-membered macrocyclic lactam that is maytansine in which one of the hydrogens of the terminal N-acetyl group is replaced by a sulfanylmethyl group. It has a role as an antineoplastic agent and a tubulin modulator. It is an alpha-amino acid ester, a carbamate ester, an epoxide, an organic heterotetracyclic compound, an organochlorine compound, a thiol and a maytansinoid. It is functionally related to a maytansine."}]