Using O=C1COc2ccncc2N1, O=C(CBr)c1cc(Br)c(O)c(Br)c1 to produce O=C(CN1C(=O)COc2ccncc21)c1cc(Br)c(O)c(Br)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.