ISOLATION AND IDENTIFICATION OF HOMOISOFLAVANONES FROM MAIDONG (OPHIOPOGON JAPONICUS (THUNB) KER-GAWL)

Five homoisoflavonoids isolated from tubers of Ophiopogon japonicus (Thunb)Ker-Gawl cultivated in Zhejiang province were identified by means of physical and chemical properties and spectral data. Three are reported as known homoisoflavanones: 6-aldehydo-isoophiopogonanone A, methylophiopogonanone A and methylophiopogonanone B. Two are new homoisoflavones, named 6-aldehydoisoophiopogonone A and 6-aldehydo-isoophiopogonone B respectively.