[{"from": "human", "value": "Generate a molecule based on this description. The molecule is an organic heterohexacyclic compound that is 12,13-dihydro-6H-indolo[2,3-a]pyrrolo[3,4-c]carbazole in which the hydrogen at position 5 is substituted by a methoxycarbonyl group. It is synthesized by a gene cluster found in environmental DNA and exhibits cytotoxic activity against human HCT116 cancer cells and Staphylococcus aureus. It has a role as an antibacterial agent, a toxin and an antineoplastic agent. It is an indolocarbazole alkaloid, a methyl ester, a secondary amino compound and an organic heterohexacyclic compound."}, {"from": "gpt", "value": "[C][O][C][=Branch1][C][=O][C][=C][C][=Branch1][Branch1][=C][N][Ring1][Branch1][C][=C][Branch1][S][C][=C][Ring1][Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][N][Ring1][=Branch2][N][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring2][Ring1][C]"}]