Using COC(=O)c1cnc(O)c(Cl)c1, CC(C)(C)OC(=O)N1CCC[C@H]1CO to produce COC(=O)c1cnc(OCC2CCCN2C(=O)OC(C)(C)C)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.