Using CCCc1nc2c(NC(=O)C(Cl)(Cl)Cl)nc3cc(OCc4ccccc4)ccc3c2s1 to produce CCCc1nc2c(N)nc3cc(OCc4ccccc4)ccc3c2s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.