Juan F. Sanz

3-Methoxyflavones and coumarins from Artemisia incanescens

Seven 3-methoxyflavones and three coumarins have been isolated from aerial parts of Artemisia incanescens. Their 1H NMR spectra in DMSO-d6 and CDCl3 are compared and discussed. The hitherto unreported 13C NMR spectra of some of these compounds are also discussed.

Further flavonol glycosides from Anthyllis onobrychioides

Abstract The new triglycoside rhamnetin 3- O -β- d -galactopyranoside-3′,4′-di- O -β- d -glucopyranoside has been isolated from the aerial parts of Anthyllis onobrychioides . Two other new flavonol glycosides, rhamnazin 3- O -galactoside and rhamnazin 3- O -galactoside-4′- O -glucoside, were identified but not isolated as pure substances.

Sesquiterpene lactones from Artemisia herba-alba.

Abstract The aerial parts of Artemisia herba-alba subsp. valentine yielded, in addition to known compounds, a new germacranolide, six new eudesmanolides and ilicic acid methyl ester.

Sesquiterpene lactones and lignans from Centaurea species

Abstract The aerial parts of Centaurea calcitrapa yielded cnicin, cnicin 4′-acetate, melitensin, a related elemanolide, the two new germacranolides 11α,13- and 11β,13-dihydrosalonitenolide, and the lignans arctigenin, pinoresinol and 7′( S )-hydroxyarctigenin. The latter compound is described for the first time as a natural product. The aerial parts of Centaurea pabotii yielded 11,13-dihydrodeacylcynaropicrin, aguerin A and a new guaianolide related to cynaropicrin.

Sesquiterpene lactones from Artemisia caerulescens Subsp. gargantae

Abstract Extraction of aerial parts of Artemisia caerulescens subsp. gargantae chromatographic separation yielded two new eudesmane ketones a new eudesmanolide, in addition to several known compounds. Chemical and spectroscopic evidence shows that the structure of shonachalin B has to be corrected.

Oxygenated nerolidol esters and eudesmane acids fromInula viscosa

Abstract The aerial parts of Inula viscosa yielded three new esters of 9-hydroxynerolidol and two new eudesmane acids, along with several known compounds.

Sesquiterpene lactones fromArtemisia barrelieri

Abstract Extraction of aerial parts of Artemisia barrelieri and chromatographic separation yielded a new germacranolide, two new monocyclic sesquiterpenes and a novel germacranolide dimer, together with several known compounds.

Two eudesmane acids from Artemisia vulgaris

Abstract The aerial parts of Artemisia vulgaris yielded two new eudesmane acids and a known eudesmane dialcohol.

A germacrane derivative from Pallenis spinosa

Abstract Extraction of aerial parts of Pallenis spinosa and chromatographic separation have yielded a new germacrane derivative and the known sesquiterpenes shiromool and α-cadinol.

New sesquiterpene lactones and acetylenes from chrysanthemum lavandulifolium

Abstract The aerial parts of Chrysanthemum lavandulifolium Mak. (Asteraceae) yielded three new acetylenes of the spiroacetal type 1-3, as well as two new germacranolides 4-5 and several known lactones.