Using CC1CN(C(=O)OC(C)(C)C)c2ncc(Br)cc2O1, CC(C)OB(OC(C)C)OC(C)C to produce CC1CN(C(=O)OC(C)(C)C)c2ncc(B(O)O)cc2O1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.