Using Cn1c(C(=O)N[C@@H](CCCNC(=O)OCc2ccccc2)C(=O)N[C@H]2CCC[C@H]2C(=O)OC(C)(C)C)cc2ccccc21 to produce Cn1c(C(=O)N[C@@H](CCCN)C(=O)N[C@H]2CCC[C@H]2C(=O)OC(C)(C)C)cc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.