[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch1][C][C][C][C@@H1][Branch1][P][C][=Branch1][C][=O][N][C@@H1][C][C][N][Branch1][Ring2][C][Ring1][Branch1][C][#N][N][C][=Branch1][C][=O][O][C][C][=C][C][=C][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "The molecule is a solid. This compound belongs to the n-acyl-alpha amino acids and derivatives. These are compounds containing an alpha amino acid (or a derivative thereof) which bears an acyl group at its terminal nitrogen atom. It is known to target cathepsin K."}]