Using O=c1[nH]c2ccc(Br)cc2c(-c2ccccc2)c1-c1cnc[nH]1, O=C([O-])[O-] to produce Cn1c(=O)c(-c2cnc[nH]2)c(-c2ccccc2)c2cc(Br)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.