Using CC(C)(C)OC(=O)CNC(=O)OC(C)(C)C, C=C(C)CBr to produce C=C(C)CN(CC(=O)OC(C)(C)C)C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.