Using COCCN(CCOC)S(F)(F)F, CC(C)(C)OC(=O)[C@H]1CC[C@@H](OCCCO)CC1 to produce CC(C)(C)OC(=O)[C@H]1CC[C@@H](OCCCF)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.