Search results for "Artemisine"
showing 4 items of 4 documents
Functionality transfer from C8 to C9 in sesquiterpenes. Synthesis of the named Herbolide E from artemisin.
1992
Abstract The key intermediate 6 was obtained in five steps from artemisin (1). The spectroscopic characteristics of the synthetic product 7a reveal that the proposed structure for the natural herbolide E must be revised.
Synthesis of various natural 8,12-elemanolides from artemisin
1989
Abstract This paper describes the chemical transformations of artemisin into various natural 8,12-elemanolides.
13C NMR spectra of eudesmanolides I—eudesman-12,6-olides
1987
The 13C NMR spectra of 26 eudesmanolides of natural and synthetic origin have been measured, including the naturally occurring sesquiterpene lactones artemisin, torrentin, rothin-A and rothin-B and several semi-synthetic eudesman-12,6-olides obtained from artemisin. The chemical shift values of the different compounds are compared and the effects of the substituents are discussed.
Transformation of artemisin into artapshin and 8α-hydroxy-11β,13-dihydrobalchanin
1987
Abstract Partial syntheses of the sesquiterpene lactones artapshin ( 1 ) and 8α-hydroxy-11β, 13-dihydrobalchanin ( 2 ) from artemisin ( 3 ) are described.