Journal
NATURAL PRODUCT RESEARCH
Volume 24, Issue 7, Pages 687-696Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14786410903292433
Keywords
Cleome droserifolia; sesquiterpenes; dolabellane diterpene; flavonoids
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Funding
- University of Alexandra, Alexandria, Egypt
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Four new sesquiterpene derivatives have been isolated from the aerial parts of Cleome droserifolia. Their structures were established as 6-di(7-hydroxy, 1, 5-epoxy germacrane) (2), 4(15)-guaiane-6-ol (3), 7-germacra-1(10), 4(15)-diene-5, 6-diol (4) and 4,7,8-eudesma-triol (5). In addition, a new dolabellane diterpene derivative with the naturally rare peroxy function was identified as methyl ester of 2,18-O-diacetyl-16-O-(3-hydroxy-3-methylglutaryl)-7-hydroperoxydolabella-3,8(17)diene-2,16,18 triol (7). Two known flavonoid derivatives, pinocembrin (6) and quercetin-3-glucoside,7-rhamnoside (1) were isolated from the same source. Structures were established by spectroscopic data.
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