Using COC(=O)CCS, Cc1csc(Nc2ncc(Br)cc2Oc2ccccc2)n1 to produce COC(=O)CCSc1cnc(Nc2nc(C)cs2)c(Oc2ccccc2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.