Using CN(C)C=O, COc1ccc(C(OC)c2sccc2C(OC)OC)cc1OC to produce COc1ccc(C(OC)c2sc(C=O)cc2C=O)cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.