115334-00-4Relevant articles and documents
SESQUITERPENE LACTONES IN MONGOLIAN Saussurea lipshitzii
Todorova, Milka N.,Ognyanov, Iliya V.,Shatar, Sanduin
, p. 1106 - 1109 (2007/10/02)
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.