Using Nc1cccc(-c2cnc3ccccc3c2)c1, O=C(O)c1cc2cccc(O)c2oc1=O to produce O=C(Nc1cccc(-c2cnc3ccccc3c2)c1)c1cc2cccc(O)c2oc1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.