Using COc1cc(Oc2ccc(C3=CC=CN4CCS(=O)(=O)N=C34)cc2)ccc1Cl to produce COc1cc(Oc2ccc(C3CCCN4CCS(=O)(=O)N=C34)cc2)ccc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.