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