Using O=C1CCC(=O)N1Br, COc1cc2c(cc1OC)C(Oc1ccccc1)CNCC2 to produce COc1cc2c(cc1OC)C(Oc1ccc(Br)cc1)CNCC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.