Sesquiterpene Lactones from Vernonia nigritiana.
Two new sesquiterpenes, 8α-(4-hydroxymethacryloyl)-14-acetoxy-salonitenolide (1) and 8α-(2-hydroxymethyl 2-butenoyl)-14-acetoxy-salonitenolide (2), together with five known sesquiterpenes were isolated from the leaves of Vernonia nigritiana Oliv. & Hiern. Their structural characterization was obtained on the basis of extensive NMR spectroscopic and mass spectrometric studies.
Andrea
A
Esposito
Nicola
N
Malafronte
Rokia
R
Sanogo
Massimiliano
M
D'Ambola
Lorella
L
Severino
D007783:Lactones / Q000302:isolation & purification; D015394:Molecular Structure; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification*; D035741:Vernonia / Q000737:chemistry*
C000609529:8alpha-(2-hydroxymethyl 2-butenoyl)-14-acetoxy-salonitenolide; C000609528:8alpha-(4-hydroxymethacryloyl)-14-acetoxy-salonitenolide; D007783:Lactones; D012717:Sesquiterpenes; C000605837:glaucolide A; C558651:vernolide-A