H. Yoda et al., NOVEL ASYMMETRIC-SYNTHESIS OF AN INDOLIZIDINE ALKALOID, (-LENTIGINOSINE EMPLOYING HIGHLY STEREOSELECTIVE HYDROGENATION OF ALPHA-HYDROXYPYRROLIDINE()), Synlett, (2), 1998, pp. 137
An efficient and novel process is described for the asymmetric synthes
is of all (1S,2S, 8aS)-dihydroxyindolizidine alkaloid, (+)-lentiginosi
ne in which the asymmetric deoxygenation of the quaternary alpha-hydro
xypyrrolidine derivative derived from D-xylose is used as a key step.