Using O=CN1CCOCC1, CCCC1CCC(c2ccc(-c3ccc[se]3)cc2)CC1 to produce CCCC1CCC(c2ccc(-c3ccc(C=O)[se]3)cc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.