[{"from": "human", "value": "Describe this molecule. [B][Branch2][Ring2][#C][C@H1][Branch1][#Branch2][C][C][C][N][=C][Branch1][C][N][N][N][C][=Branch1][C][=O][C@@H1][C][C][C][N][Ring1][Branch1][C][=Branch1][C][=O][C@@H1][Branch1][#Branch2][C][C][=C][C][=C][C][=C][Ring1][=Branch1][N][C][=Branch1][C][=O][C][Branch1][C][O][O].[Cl]"}, {"from": "gpt", "value": "The molecule is a hydrochloride resulting from the formal reaction of equimolar amounts of Ac-(D)Phe-Pro-boroArg-OH and hydrogen chloride. A thrombin (Factor IIa) inhibitor, thereby acting as an anticoagulant. It has a role as an EC 3.4.21.5 (thrombin) inhibitor and an anticoagulant. It contains an Ac-(D)Phe-Pro-boroArg-OH(1+)."}]