[{"from": "human", "value": "Provide a description of this molecule. [C][C@@H1][/C][=C][/C][=Branch2][=Branch1][O][=C][/C@H1][Branch2][=Branch1][Ring2][C][/C][=C][/C][=Branch2][Branch1][N][=C][\\C][C][C@@H1][Branch2][Branch1][Ring1][/C][=C][/C][=C][/C@@H1][Branch2][Ring2][#Branch2][C@H1][Branch1][=C][O][C][=Branch1][C][=O][/C][=Branch1][Branch1][=C][\\-Ring2][Ring1][=Branch2][/C][/C][=Branch2][Ring1][Branch1][=C][/C][=C][Branch1][C][\\C][/C][N][C][=Branch1][C][=O][C@H1][Branch1][Ring1][C][O][N][C][=O][/C][C][O][C][/C][O][C][/C]"}, {"from": "gpt", "value": "The molecule is a macrolide that is isolated from the marine tunicate Eudistoma cf. rigida and exhibits potent in vitro cytotoxic activity. It has a role as a marine metabolite and an antineoplastic agent. It is a macrolide, an ether and a member of formamides. It is functionally related to a L-serine."}]