Using O=C1CCOCC1, CC(C)(C)OC(=O)Nc1ccc(Br)cc1 to produce CC(C)(C)OC(=O)Nc1ccc(C2(O)CCOCC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.