Using O=c1[nH]n(C2CCNCC2)c(-c2ccncc2)c1-c1ccc(Cl)cc1, C=O to produce CN1CCC(n2[nH]c(=O)c(-c3ccc(Cl)cc3)c2-c2ccncc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.