5-Methoxyjusticidin A, a new arylnaphthalene lignan from Protium unifoliolatum.
A new arylnaphthalene lignan, 9-(1,3-benzodioxol-5-yl)-4,5,6, 7-tetramethoxynaphtho[2,3-C]furan-1(3H)-one (5-methoxyjusticidin A, 1), was isolated from a Et2O extract of the wood of Protium unifoliolatum. The structure of 1 was determined by both spectroscopic and X-ray crystallographic methods.
Siani
A C
AC
LQPN, Far-Manguinhos, FIOCRUZ, R. Sizenando Nabuco 100, 21041-250, Rio de Janeiro, RJ, Brazil. siani@far.fiocruz.br
Zoghbi
M G
MG
Wolter
E L
EL
Vencato
I
I
D001938:Brazil; D002240:Carbohydrate Sequence; D018360:Crystallography, X-Ray; D004148:Dioxolanes / Q000737:chemistry*; D008969:Molecular Sequence Data; D010944:Plants / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D014934:Wood
C113218:5-methoxyjusticidin A; D004148:Dioxolanes