[{"from": "human", "value": "Provide a description of this molecule. [C][O][C][=C][C][=Branch1][N][=C][C][=Branch1][=Branch1][=C][Ring1][=Branch1][O][C][O][C][C][C@@H1][C][O][C][C@H1][Ring1][Branch1][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][O][Ring1][#Branch1]"}, {"from": "gpt", "value": "The molecule is a lignan that consists of tetrahydrofuran substituted by a 5-methyl-1,3-benzodioxole group at position 3 and a 3,4,5-trimethoxybenzyl group at position 4 (the 3S,4S stereoisomer). It has a role as an antineoplastic agent and a metabolite. It is a member of benzodioxoles, a cyclic acetal, a lignan and a member of methoxybenzenes."}]