1.
Nat Prod Commun
; 11(3): 377-80, 2016 Mar.
Artículo
en Inglés
| MEDLINE
| ID: mdl-27169186
RESUMEN
Acetylation of the 3,4-seco-derivatives of betulin, allobetulin and 28-oxyallobetulone gave the 5,19-(2,6-dimethylpyridin-4-yl)-4,23,24,20,29,30-hexanorlupane, and 5-(2,6-dimethylpyridin-4-yl)-4,23,24-trisnor-derivatives of oleanane and ursane.
Asunto(s)
Ácido Oleanólico/análogos & derivados , Triterpenos/síntesis química , Estructura Molecular , Ácido Oleanólico/síntesis química
2.
Nat Prod Commun
; 11(1): 23-4, 2016 Jan.
Artículo
en Inglés
| MEDLINE
| ID: mdl-26996010
RESUMEN
Oximation of the dihydroquinopimaric acid O-cyanoethylderivative (2) via the amidoxime 3, and cyclization with trifluoroacetic anhydride resulted in a new 1,2,4-oxadiazole diterpenoid (4).