Using O=C(O)c1ccc(=O)n(CCNC(=O)c2cccnc2)c1, BrCc1ccccc1 to produce O=C(NCCn1cc(C(=O)OCc2ccccc2)ccc1=O)c1cccnc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.