Using CC(=O)Oc1ccccc1C(=O)Nc1ccc2c(c1)c(-c1ccccc1)nn2C(C)=O to produce O=C(Nc1ccc2[nH]nc(-c3ccccc3)c2c1)c1ccccc1O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.