Using Clc1ccc(-c2n[nH]c(C3CCNCC3)c2-c2ccncc2)cc1, C=O to produce CN1CCC(c2[nH]nc(-c3ccc(Cl)cc3)c2-c2ccncc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.