Using CC(NC(=O)OC(C)(C)C)C(=O)NC1CCN(c2c(F)cc3c(=O)c(C(=O)O)cn(C4CC4)c3c2F)C1 to produce CC(N)C(=O)NC1CCN(c2c(F)cc3c(=O)c(C(=O)O)cn(C4CC4)c3c2F)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.