Sesquiterpene lactones from Achillea collina J. Becker ex Reichenb.
The flower heads of Achillea collina afforded 31 individual sesquiterpene lactones, among which nine guaianolides (1, 16, 20, 21, 23, 27-30), a germacranolide (18) and a dimeric guaianolide (31) were found to be new natural products. The lactones 2-4, 12, 14, 15, 17, 19 and 25 were isolated for the first time from the investigated species. Their structures were established by spectral methods.
Trendafilova
Antoaneta
A
Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia. trendaf@orgchm.bas.bg
Todorova
Milka
M
Mikhova
Bozhanka
B
Vitkova
Antonina
A
Duddeck
Helmut
H
D031162:Achillea / Q000737:chemistry*; D035264:Flowers / Q000737:chemistry*; D007783:Lactones / Q000737:chemistry*; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry; D012717:Sesquiterpenes / Q000737:chemistry*; D045789:Sesquiterpenes, Guaiane / Q000737:chemistry
D007783:Lactones; D010936:Plant Extracts; D012717:Sesquiterpenes; D045789:Sesquiterpenes, Guaiane