[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is a tetrapeptide composed of L-aspartic acid, L-valine and two L-proline units joined in sequence by peptide linkages. It has a role as a metabolite. It is functionally related to a L-aspartic acid, a L-valine and a L-proline."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][C@@H1][Branch2][Ring1][N][C][=Branch1][C][=O][N][C][C][C][C@H1][Ring1][Branch1][C][=Branch1][C][=O][N][C][C][C][C@H1][Ring1][Branch1][C][=Branch1][C][=O][O][N][C][=Branch1][C][=O][C@H1][Branch1][#Branch1][C][C][=Branch1][C][=O][O][N]"}]