Using O=C(c1ccccc1)c1cc2c3ccccc3[nH]c(=O)n2n1 to produce O=c1[nH]c2ccccc2c2cc(C(O)c3ccccc3)nn12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.