[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][Branch1][C][C][C][C@H1][C][=Branch1][C][=O][N][C][C][C][C@H1][Ring1][Branch1][C@][Branch2][Branch1][Branch2][N][Ring1][#Branch2][C][=Branch1][C][=O][C@][Branch1][Ring2][O][Ring1][=Branch1][Branch1][=Branch1][C][Branch1][C][C][C][N][C][=Branch1][C][=O][C@H1][C][N][Branch2][Ring1][Branch2][C@@H1][C][C][=C][N][C][=C][C][=C][C][=Branch1][=Branch1][=C][Ring1][=Branch2][Ring1][=Branch1][C][Ring1][N][=C][Ring1][S][C][O]"}, {"from": "gpt", "value": "The molecule is ergotaman bearing hydroxy, isopropyl, and 2-methylpropyl groups at the 12', 2' and 5' positions, respectively, and oxo groups at positions 3', 6', and 18. It is a natural ergot alkaloid. Ergocryptine discussed in the literature prior to 1967, when beta-ergocryptine was separated from alpha-ergocryptine, is now referred to as alpha-ergocryptine. It derives from a hydride of an ergotaman."}]