[{"from": "human", "value": "Please give me some details about this molecule. [C][C@@H1][C@@H1][C][C@][Branch2][=Branch1][O][C@@H1][Branch2][=Branch1][Branch1][/C][=C][/C][=C][Branch2][Branch1][=N][/C][C][=C][C][=Branch1][=N][=C][Branch1][=Branch2][C][=Branch1][Ring2][=C][Ring1][=Branch1][O][C][Cl][N][Branch2][Ring2][=Branch1][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][\\C][O][C][Branch1][#Branch2][N][C][=Branch1][C][=O][O][Ring2][Ring2][=N][O]"}, {"from": "gpt", "value": "The molecule is an organic heterotetracyclic compound and 19-membered macrocyclic lactam antibiotic originally isolated from the Ethiopian shrub Maytenus serrata but also found in other Maytenus species. It exhibits cytotoxicity against many tumour cell lines. It has a role as a plant metabolite, an antimicrobial agent, an antineoplastic agent, a tubulin modulator and an antimitotic. It is an epoxide, a carbamate ester, an organochlorine compound, an alpha-amino acid ester, an organic heterotetracyclic compound and a maytansinoid."}]