Using Clc1ccc2c(C3=CCNCC3)c[nH]c2c1, O=C(O)C1CCc2ccc3[nH]ccc3c21 to produce O=C(C1CCc2ccc3[nH]ccc3c21)N1CC=C(c2c[nH]c3cc(Cl)ccc23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.