[{"from": "human", "value": "Please give me some details about this molecule. [C][C][C][N][S][=Branch1][C][=O][=Branch1][C][=O][N][C][=C][Branch2][Ring1][Branch2][C][=Branch1][=Branch1][=N][C][=N][Ring1][=Branch1][O][C][C][O][C][=N][C][=C][Branch1][Branch1][C][=N][Ring1][=Branch1][Br][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][Br]"}, {"from": "gpt", "value": "The molecule is an Endothelin Receptor Antagonist. The mechanism of action of macitentan is as an Endothelin Receptor Antagonist."}]