[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][Branch1][C][C][Branch1][C][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][S][=Branch1][C][=O][=Branch1][C][=O][N][C][=C][Branch2][Ring1][#Branch1][C][=Branch1][S][=N][C][=Branch1][Ring2][=N][Ring1][=Branch1][C][=N][C][=C][C][=N][Ring1][=Branch1][O][C][C][O][O][C][=C][C][=C][C][=C][Ring1][=Branch1][O][C]"}, {"from": "gpt", "value": "The molecule is a dual endothelin receptor antagonist marketed under the trade name Tracleer by Actelion Pharmaceuticals. Bosentan is used to treat pulmonary hypertension by blocking the action of endothelin molecules that would otherwise promote narrowing of the blood vessels and lead to high blood pressure."}]