Using O=C1CCOCC1, C[Si](C)(C)CCOCn1cnc(C(F)(F)F)c1 to produce C[Si](C)(C)CCOCn1cc(C(F)(F)F)nc1C1(O)CCOCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.