[{"from": "human", "value": "Describe this molecule. [C][C][=Branch1][C][=O][O][C@@H1][C][C@@H1][C@][Branch1][=C][C][=C][C][=Branch1][C][=O][C][Ring1][#Branch1][Branch1][C][C][C][Branch2][Ring2][Ring2][C@@H1][C@@][Ring1][=N][Branch2][Ring1][N][C][=C][C][=Branch1][C][=O][C@H1][Branch1][O][C@][Ring1][=Branch1][Branch1][Branch1][C][C][Ring1][#Branch2][C][C][=C][C][O][C][Ring1][Branch1][=O][C][C]"}, {"from": "gpt", "value": "The molecule is a tetracyclic triterpenoid that is 4,4,8-trimethylandrosta-1,14-diene substituted by a oxo groups at positions 3 and 16, an acetoxy group at position 7 and a 2-oxo-2,5-dihydrofuran-3-yl group at position 17. It has been isolated from Azadirachta indica. It has a role as a metabolite and a plant metabolite. It is an acetate ester, a cyclic terpene ketone, a limonoid, a tetracyclic triterpenoid and a butenolide."}]