Using COc1nc(SC)nc2c1ccn2Cc1ccc(C(=O)c2ccc(Cl)cc2)cc1 to produce CSc1nc2c(ccn2Cc2ccc(C(=O)c3ccc(Cl)cc3)cc2)c(=O)[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.