[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is an organic heterotetracyclic compound isolated from the bacterial strain Streptomyces lucensis MA7349 and has been shown to exhibit antibacterial activity. It has a role as an antimicrobial agent, an antibacterial agent and a bacterial metabolite. It is an organic heterotetracyclic compound, an oxaspiro compound, a dicarboxylic acid, an acetate ester, a ketolactone, a member of acetamides and an organic sulfide."}, {"from": "gpt", "value": "[C][C@H1][C@@H1][Branch2][=Branch1][#Branch2][C][C@H1][C@H1][Branch1][Branch1][C@@H1][Ring1][=Branch1][O][C][=C][C@@H1][C@@][Ring1][Branch2][Branch2][Branch1][#Branch1][C][=Branch1][C][=O][C@][Branch2][Ring1][C][C@@H1][Branch1][Ring2][C][Ring1][#Branch1][/C][=C][/C][=C][/C][=C][/C][=Branch1][C][=O][O][C][=Branch1][C][=O][C@H1][Branch1][=Branch1][O][C][Ring1][P][=O][C][S][C][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][N][C][=Branch1][C][=O][C][C][O][C][=Branch1][C][=O][C]"}]