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Highly oxygenated bisabolenes and an acetylene from Matricaria aurea
1Department of Chemistry, Faculty of Science, El-Minia University, Egypt.
Phytochemistry
|July 2, 1999
Abstract:
Reinvestigation of the aerial parts of Matricaria aurea led to the isolation of three new bisabolenes and a new acetylene. The structures of the four compounds, namely (1R*,2R*,3R*,6R*,7R*)1,2,3,6,7- pentahydroxy-bisabol-10(11)-ene, (1R*,2R*,3R*,6R*,7R*)1,2,3,6,7-pentahydroxy-1-acetoxy-bisabol-10(1 1)-ene, (1R*,2R*,3R*,6R*,7R*)1,2,3,6,7-pentahydroxy-2-acetoxy-bisabol-10(1 1)-ene and (3S*,4S*,5R*)-(E)-3,4-dihydroxy-2-(hexa-2,4-diynyliden)-1,6- dioxaspiro-(4,5)decane, were deduced from the high field NMR studies.