Using CCOC(=O)c1cn(C2CC2)c2c(F)c(N3CCOC(CN(C)C(=O)OCC)C3)c(F)cc2c1=O to produce CCOC(=O)N(C)CC1CN(c2c(F)cc3c(=O)c(C(=O)O)cn(C4CC4)c3c2F)CCO1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.