Using COC(=O)CCC=O, Clc1ncc2c(n1)N1CCOC[C@H]1CN2 to produce COC(=O)CCCN1C[C@@H]2COCCN2c2nc(Cl)ncc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.