2-羟基-1,4-萘醌

丁烯酮

2-acetyl-2-methoxy-2,3-dihydro-naphtho[2,3-b]furan-4,9-dione

2-(1-hydroxyethyl)benzo[f][1]benzofuran-4,9-dione

2-acetyl-4,9-dimethoxy-naphtho[2,3-b]furan