Using COC(=O)c1ccc(-c2nc(C3CCC(NC(=O)OC(C)(C)C)CC3)cnc2N)cc1F to produce CC(C)(C)OC(=O)NC1CCC(c2cnc(N)c(-c3ccc(C(=O)O)c(F)c3)n2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.