Using Cn1c(B(O)O)cc2ccc(Cl)cc21, CC(C)(C)OC(=O)N(C(=O)OC(C)(C)C)c1cncc(Br)c1 to produce Cn1c(-c2cncc(N(C(=O)OC(C)(C)C)C(=O)OC(C)(C)C)c2)cc2ccc(Cl)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.