Triterpenes from the resin of Protium heptaphyllum.
From the neutral fraction of the resin of Protium heptaphyllum, a mixture of alpha- and beta-amyrin, a mixture of maniladiol and brein have been isolated as main components, and the novel 3 beta,24-dihydroxy-urs-12-ene (1), 3-oxo-20S-hydroxytaraxastane (2) and 3 beta,20S-dihydroxytaraxastane (3) as minor components. NMR data of the last three compounds are provided.
Susunaga
G S
GS
Laboratório de Química de Produtos Naturais e Farmacologia Aplicada, Far-Manguinhos, FIOCRUZ, Rio de Janeiro, Brazil.
Siani
A C
AC
Pizzolatti
M G
MG
Yunes
R A
RA
Delle Monache
F
F
D029403:Burseraceae; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D012116:Resins, Plant / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry*
D012116:Resins, Plant; D014315:Triterpenes