Using CCOC(=O)C1CCCN(C(=O)OC(C)(C)C)C1, CC(C)=CCBr to produce CCOC(=O)C1(CC=C(C)C)CCCN(C(=O)OC(C)(C)C)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.