Using O=CN1CCOCC1, CC(C)(C)[Si](C)(C)OCCOCc1cccc(Br)c1 to produce CC(C)(C)[Si](C)(C)OCCOCc1cccc(C=O)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.