Structure Identification: |
Chemical & pharmaceutical bulletin,1993, 41(2), 391-393. | Comparative Studies on the Constituents of Ophiopogonis Tuber and Its Congeners. VII. Studies on the Homoisoflavonoids of the Subterranean Part of Ophiopogon japonicus KER-GAWLER cv. Nanus. [Reference: WebLink] | METHODS AND RESULTS:
Six known homoisoflavonoidal compounds (1-6) and three new homoisoflavonoidal compounds (7-9) were isolated from the ether-soluble fraction of the subterranean part of Ophiopogon japonicus KER-GAWLER cv. Nanus. Among them, 1,2,3,4,5 and 6 were identified as Methylophiopogonone A (1), ophiopogonone A (2), methylophiopogonanone A (3), ophiopogonanone A (4), JE-III (5) and desmethylisoophiopogonone B (6), respectively.
CONCLUSIONS:
The structures of compounds 7-9 were elucidated as 5,7,2'-trihydroxy-6-methyl-3-(3', 4'-methylenedioxybenzyl)chromone (7), 5,7,2'-trihydroxy-8-methyl-3-(3', 4'-methylenedioxybenzyl)chromone (8), and a racemate of 5-hydroxy-7,8-dimethoxy-6-methyl-3-(3', 4'-dihydroxybenzyl)chroman-4-one (9), respectively. |
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