[{"from": "human", "value": "What can you tell me about this molecule? [C][O][C][=C][Branch2][Ring2][=N][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][N][C][=N][C][=Branch2][Ring1][Ring2][=N][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][N][C][C][=N][C][=C][C][=N][Ring1][=Branch1][N][C][C][C][C@H1][Ring1][Branch1][C][O][Cl]"}, {"from": "gpt", "value": "The molecule is a selective inhibitor of phosphodiesterase type 5 (PDE5) and is used as therapy of erectile dysfunction. Avanafil is a relatively new medication and has yet to be linked to instances of serum enzyme elevations or with clinically apparent acute liver injury."}]