Using COc1ccc(-c2nc(S)[nH]c2-c2ccc(OC)cc2)cc1, Cc1ccc(S(=O)(=O)OCCCl)cc1 to produce COc1ccc(-c2nc3n(c2-c2ccc(OC)cc2)CCS3)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.