Using O=C(OCc1ccccc1)N1CCC(c2nc(-c3ccncc3)c(-c3ccc(Cl)c(Cl)c3)[nH]2)CC1 to produce Clc1ccc(-c2[nH]c(C3CCNCC3)nc2-c2ccncc2)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.