[Studies on the chemical constituents from Inula cappa (II)].
OBJECTIVE
To study the chemical constituents of the root of Inula cappa.


METHODS
The compounds were isolated and purified by recrystallization and chromatography with silica gel column and Sephadex LH-20 column. Their structures were identified by physico-chemical properties and spectral analysis.


RESULTS
Seven compounds were isolated as scopolin (I), octacosanoic acid (II), tritriacontane (III), (2S,3S,4R,8E)-2-[(2'R)-2'-hydroxydocosanosylamino]-octadecane-1,3,4-triol(IV),(2S,3S,4R,8E)-2-[(2'R)-2'-hydroxytricosanosylamino]-octadecane-1,3,4-triol(V), (2S,3S,4R,8E)-2-[(2'R)-2'-hydroxytetracosanosylamino]-octadecane-1,3,4-triol(VI), (2S,3S,4R,8E)-2-[(2'R)-2'-hydroxypentacosanosylamino]-octadecane-1,3,4-triol(VIII), (2S,3S,4R,8E)-2-[(2'R)-2'-hydroxyhexacosanosylamino]-octadecane-1,3,4-triol(VIII).


CONCLUSIONS
All compounds were isolated from Inula cappa for the first time.
Guo
Qi-lei
QL
Institute of Medicinal Plant Development, Peking Union Medical College & Chinese Academy of Medical science, Beijing 100094, China. guo-ql@163.com
Yang
Jun-shan
JS
Liu
Jian-xun
JX
D002518:Ceramides / Q000032:analysis / Q000302:isolation & purification; D003374:Coumarins / Q000032:analysis / Q000302:isolation & purification*; D005227:Fatty Acids / Q000032:analysis / Q000302:isolation & purification*; D005960:Glucosides / Q000032:analysis / Q000302:isolation & purification*; D038143:Inula / Q000737:chemistry*; D000432:Methanol; D015394:Molecular Structure; D010232:Paraffin / Q000032:analysis / Q000302:isolation & purification; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
D002518:Ceramides; D003374:Coumarins; D005227:Fatty Acids; D005960:Glucosides; C417572:scopolin; C068792:octacosanoic acid; C070808:tritriacontane; D010232:Paraffin; D000432:Methanol