[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C@@H1][C][C@H1][C@@H1][Branch2][Ring1][N][C][C][=C][Branch1][=C][N][C][=C][C][=C][C][Ring1][O][=C][Ring1][=Branch2][Ring1][=Branch1][C][Branch1][C][C][Branch1][C][C][C][=C][N][Branch1][Branch1][C][Ring2][Ring1][Branch1][C]"}, {"from": "gpt", "value": "The molecule is an ergot alkaloid that is ergoline substituted by a 2-methylbut-3-en-2-yl group at position 2 and methyl groups at positions 6 and 8 (the 8beta stereoisomer). It is isolated from an endophytic fungus, Aspergillus fumigatus, and exhibits potent cytotoxicity against human leukemia cells (K562). It has a role as an antineoplastic agent and an Aspergillus metabolite. It is functionally related to a fumigaclavine C. It derives from a hydride of an ergoline."}]