Using COC(=O)[C@H](CCC(=O)OC(C)(C)C)NC(=O)c1cc(OCC(=O)N2CCC[C@H]2C(=O)NCCF)n(-c2ccccc2)n1 to produce CC(C)(C)OC(=O)CC[C@H](NC(=O)c1cc(OCC(=O)N2CCC[C@H]2C(=O)NCCF)n(-c2ccccc2)n1)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.