A. Madder et al., THE SYNTHESIS OF DI(HYDROXYALKYL) SUBSTITUTED BICYCLIC GUANIDINES, Bulletin des Societes chimiques belges, 106(9-10), 1997, pp. 613-621
The synthesis of the enantiomerically pure bicyclic guanidines 3a and
3b is described. The convergent strategy is based on methodology devel
oped by Schmidtchen. The therefore required amine components 6 and 9 a
re obtained from methionine and L-glutamic acid, respectively.