Using O=C(NC1CN(C(=O)C2CCCCC2)c2ccccc2NC1=O)OCc1ccccc1, CC(C)(C)OC(=O)CBr to produce CC(C)(C)OC(=O)CN1C(=O)C(NC(=O)OCc2ccccc2)CN(C(=O)C2CCCCC2)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.