[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][C][Ring1][Ring1][C][O][C][=C][Branch2][Ring1][#Branch2][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][=Branch1][C][=O][N][C][=C][Branch1][Branch2][C][=N][C][=C][Ring1][=Branch1][Cl][Cl][O][C][Branch1][C][F][F]"}, {"from": "gpt", "value": "The molecule is a selective inhibitor of phosphodiesterase-4 (PDE-4) that has unique antiinflammatory activity and is used to treat and prevent exacerbations of chronic obstructive pulmonary disease (COPD). Roflumilast has not been linked to significant serum enzyme elevations during therapy or to instances of clinically apparent acute liver injury."}]