Using O=C(O)Cc1ccc(Cl)c(Cl)c1, CN(C)CC1NCCc2cc(O)ccc21 to produce CN(C)CC1(C(=O)Cc2ccc(Cl)c(Cl)c2)NCCc2cc(O)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.