Using O=C1NCCC1(c1ccccc1)c1ccccc1, CC(C)(C)OC(=O)CCCBr to produce O=C(O)CCCN1CCC(c2ccccc2)(c2ccccc2)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.