Two new oxygenated diterpenoids from Juniperus formosana
- VernacularTitle:刺柏中两个新的含氧二萜化合物
- Author:
Hongying CHEN
;
Nanying LIN
;
Dingxue YU
;
Jinlun XIE
- Publication Type:Journal Article
- Keywords:
Juniperus formosana Hayata;
fruit;
diterpenoids
- From:
Chinese Traditional and Herbal Drugs
1994;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Object To study the chemical constituents from the fruits of Juniperus formosana Hayata. Methods The compounds were isolated and purified on liquid-liquid, silica gel, and aluminium oxide column chromatography, their structures were identified by spectroscopic methods, such as GC-MS, 1H-NMR, and 13C-NMR, especially 2D-NMR. Results Two new oxygenated diterpenoids, named labdatriene (Ⅰ) and labdadiene (Ⅱ), were isolated from the ethyl acetate extract. Their structures were determined to be 19-carboxy-8(17)-13(16)-14-labdatriene and 15, 19-dihydroxyl-8(17)-13(E)-labdadiene, respectively. Conclusion Compounds Ⅰ and Ⅱ are new diterpenoids.
