[{"from": "human", "value": "Describe this molecule. [C][C][C][C][C@H1][Branch1][C][C][C@@H1][C][C][=Branch1][C][=O][N][C][C][=Branch1][C][=O][N][C@H1][Branch2][Branch1][Ring1][C][=Branch1][C][=O][N][C@H1][Branch2][Ring2][Ring2][C][=Branch1][C][=O][N][C@H1][Branch2][Ring1][#Branch2][C][=Branch1][C][=O][N][C@H1][Branch1][=Branch2][C][=Branch1][C][=O][O][Ring2][Ring1][=Branch2][C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][C][C][Branch1][C][C][C][C][Branch1][C][C][C]"}, {"from": "gpt", "value": "The molecule is a 19-membered cyclodepsipeptide that is isolated from the fermentation broth of marine actinomycete Salinispora arenicola; it has been found to block tumour necrosis factor (TNF)-induced activation of NFkappaB-Luc human embryonic kidney cells. It has a role as a metabolite and an antineoplastic agent. It is a cyclodepsipeptide and a macrocycle. It is functionally related to a (3S,4S)-3-hydroxy-4-methyloctanoic acid."}]