Using O=Cc1ccc(-c2ccc(-c3ccc(C=O)[se]3)[se]2)[se]1 to produce OCc1ccc(-c2ccc(-c3ccc(CO)[se]3)[se]2)[se]1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.