Using OCc1ccc(CN(CCc2ccccc2)c2nc(-c3ccccc3)cs2)cc1 to produce O=Cc1ccc(CN(CCc2ccccc2)c2nc(-c3ccccc3)cs2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.