Using COC(=O)c1cccc(-c2nc3c(C)cccc3o2)c1, O=C1CCC(=O)N1Br to produce COC(=O)c1cccc(-c2nc3c(CBr)cccc3o2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.