Using CCc1ccc(-c2ccc(-c3ccc[se]3)c(F)c2)cc1, O=CN1CCOCC1 to produce CCc1ccc(-c2ccc(-c3ccc(C=O)[se]3)c(F)c2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.