Using O=C1CCC(=O)N1Br, COc1ccc(-c2cc(-c3ccc(OC)cc3)nc(C)n2)cc1 to produce COc1ccc(-c2cc(-c3ccc(OC)cc3)nc(CBr)n2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.