Using CC1(C)OC(=O)Nc2ccc(Br)cc21, CC(C)OB(OC(C)C)OC(C)C to produce CC1(C)OC(=O)Nc2ccc(B(O)O)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.