Using COc1ccc(C(=O)C(C=O)c2ccc(OC)cc2)cc1, NC(N)=S to produce COc1ccc(-c2cnc(S)nc2-c2ccc(OC)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.