| Structure Identification: |
| J Nat Med. 2009 Jan;63(1):102-4. | | Sesquiterpenes from Curcuma comosa.[Pubmed: 18663560] |
METHODS AND RESULTS:
From the dried rhizomes of Curcuma comosa cultivating in Thailand, 26 known sesquiterpenes were isolated: zederone, zederone epoxide, furanodienone, isofuranodienone, 1(10)Z,4Z-furanodiene-6-one, glechomanolide, dehydrocurdione, neocurdione, curdione, 7 alpha-hydroxyneocurdione, 7 beta-hydroxycurdione, germacrone-1(10),4-diepoxide, germacrone, 13-hydroxygermacrone, curzerenone, curcolonol, alismol, alismoxide, zedoarondiol, isozedoarondiol, procurcumenol, isoprocurcumenol, aerugidiol, zedoalactone B, curcumenone, and Curcumadione. Their structures were elucidated on the basis of physicochemical evidence.
CONCLUSIONS:
Among them, glechomanolide, curzerenone, curcolonol, alismol, alismoxide, and zedoarondiol showed no significant optical activities, so they may be artifact products during the isolation or drying process. | | Zhongguo Zhong Yao Za Zhi. 2008 Apr;33(7):785-8. | | Sesquiterpenes from stems and leaves of Curcuma wenyujin.[Pubmed: 18589781] | To study the chemical constituents of the stem and leaves from Curcuma wenyujin.
METHODS AND RESULTS:
The compounds were isolated by silica gel column chromatography in associating with Sephadex LH -20 chromatography. While their structures were identified on the basis of spectroscopic date.
Nine sesquiterpenes were isolated and identified. Their structures were identified as curdione (1), neocurdione (2), trans, trans-germacrone (3), cis, trans-germacrone (4), curcumenone (5), Curcumadione (6), isoprocurcumenol (7), glechomanolide (8) and (1R, 10R)-( -)-1, 10-dihydrocurdione (9).
CONCLUSIONS:
All of these compounds were isolated from the stems and leaves of this plant for the first time. |
|
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