[Studies on chemical constituents in bark of Larix olgensis var. koreana].
OBJECTIVE
To study the chemical constituents in bark of Larix olgensis var. koreana.


METHODS
The compounds were isolated with silica gel column chromatography and their structures were elucidated on the basis of spectral analysis (IR, EI-MS, 1H-NMR, 13C-NMR).


RESULTS
Eight compounds were isolated and identified as isopimaric acid (I), beta-sitosterol (II), 24R,5alpha-stigmast-3,6-dione (III), larixol (IV), ferulic acid (V), lariciresinol (VI), secroisolariciresinol (VII) and isolariciresinol (VIII).


CONCLUSIONS
All the compounds were isolated from this plant for the first time.
Yang
Bao-hua
BH
College of Pharmacy, Second Military Medical University, Shanghai 200433, China.
Zhang
Wei-dong
WD
Gu
Zheng-bing
ZB
Li
Ting-zhao
TZ
Zhang
Chuang
C
Zhou
Yun
Y
D002264:Carboxylic Acids / Q000737:chemistry / Q000302:isolation & purification*; D005663:Furans / Q000737:chemistry / Q000302:isolation & purification*; D028221:Larix / Q000737:chemistry*; D017705:Lignans / Q000737:chemistry / Q000302:isolation & purification*; D010616:Phenanthrenes / Q000737:chemistry / Q000302:isolation & purification*; D024301:Plant Bark / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification
D002264:Carboxylic Acids; D005663:Furans; D017705:Lignans; D010616:Phenanthrenes; D012855:Sitosterols; C115138:isopimaric acid; C025473:gamma-sitosterol; C060282:lariciresinol