Using O=C(O)CN1C[C@@H]2COCCN2c2nc(Cl)ncc21, Cn1cc(N)cn1 to produce Cn1cc(NC(=O)CN2C[C@@H]3COCCN3c3nc(Cl)ncc32)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.