Total syntheses of (-)-trachelogenin, (-)-nortrachelogenin and (+)-wikstromol
作者:Kenza Khamlach、Robert Dhal、Eric Brown
DOI:10.1016/s0040-4039(00)99653-9
日期:1989.1
β-dibenzyl-γ-butyrolactones (lignans of synthetic origin), and were correlated to (±)-methyltrachelogenin 9 whose relative structure was definitely established by X-ray cristallography. (-)-Trachelogenin 1 and (-)-nortrachelogenin 12 thus have the (8S,8′S) absolute configuration, whereas (+)-nortrachelogenin 20 (or wikstromol) has the (8R,8′R) absolute configuration.
KHAMLACH, KENZA;DHAL, ROBERT;BROWN, ERIC, TETRAHEDRON LETT., 30,(1989) N7, C. 2221-2224
作者:KHAMLACH, KENZA、DHAL, ROBERT、BROWN, ERIC
DOI:——
日期:——
BELLETIRE, JOHN L.;FRY, DOUGLAS F., J. ORG. CHEM., 53,(1988) N 20, C. 4724-4729
作者:BELLETIRE, JOHN L.、FRY, DOUGLAS F.
DOI:——
日期:——
Lignanes. 16. Premières synthèses totales du (+)-wikstromol, de la (−)-trachélogénine, de la (−)-nortrachélogénine et des lignoïdes apparentés
作者:Melle Kenza Khamlach、Robert Dhal、Eric Brown
DOI:10.1016/s0040-4020(01)89041-4
日期:——
Racemic and optically active alpha,beta-dibenzyl-gamma-butyrolactones (of synthetic origin) were hydroxylated in the alpha position with respect to the carbonyl group, using oxygen in the presence of LHDS. This led to (-)-trachelogenin 1, (-)-nortrachelogenin 2 and (+)-wikstromol 3, whose interesting pharmacological properties were recently described. These natural lignans were correlated to (+/-)-methyltrachelogenin 12 whose relative structure was definitely established by X-ray cristallography.