Collect. Czech. Chem. Commun. 1991, 56, 1106-1109
https://doi.org/10.1135/cccc19911106

Sesquiterpene lactones in mongolian Saussurea lipshitzii

Milka N. Todorovaa,*, Iliya V. Ognyanova and Sanduin Shatarb

a Institute of Organic Chemistry, Centre of Phytochemistry, Bulgarian Academy of Sciences, Sofia 1113, Bulgaria
b Institute of Chemistry, Mongolian Academy of Sciences, Ulan Bator, Mongolia

Abstract

Five known guaianolides were isolated from the areal part of Saussurea lipshitzii(Asteraceae) collected in South Gobi, Mongolia: cynaropicrin (I), janerin (II), chlorojanerin (III), 15-deschloro-15-acetoxychlorojanerin (IV), and 15-deschloro-15-hydroxychlorojanerin (V). The correlation between I-V and the β-configuration of the C-4/C-15 bond in II-V was shown by biomimetic chemical transformations, suggesting compound I as the possible common precursor. (