Using O=C1NCCC(=O)c2c1[nH]c(Br)c2Br, NNc1ccccc1C(=O)O to produce O=C(O)c1ccccc1NN=C1CCNC(=O)c2[nH]c(Br)c(Br)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.