[{"from": "human", "value": "Provide a brief overview of this molecule. [C][O][C][=Branch1][C][=O][C@H1][C@H1][Branch2][Ring1][S][C][C][C@@H1][C@@H1][Ring1][=Branch1][C][C@H1][C][=C][Branch1][=Branch2][C][C][N][Ring1][=Branch1][C][Ring1][#Branch2][C][=C][C][=C][C][=C][Ring1][=Branch1][N][Ring1][=N][O]"}, {"from": "gpt", "value": "The molecule is an indole alkaloid derived from the bark of the Central African yohimbe tree (Pausinystalia yohimbe) that is widely used as therapy for erectile dysfunction. Yohimbine use has been associated with occasional severe adverse events, but has not been linked to serum enzyme elevations or clinically apparent acute liver injury."}]