K. Hammer et al., Stereoselectivity in the synthesis of conformationally constrained vicinally dihydroxylated cyclic alpha-amino acids, J CHEM S P1, 11, 2000, pp. 1691-1695
Stereoselective syntheses of precursors to vicinal cis-dihydroxy-1-aminocyc
lopentane- and -cyclohexane-carboxylic acid methyl esters and their methoxy
analogues are described. The chiral products are isolated as pure enantiom
ers. The absolute configurations at the new stereogenic centres are establi
shed by X-ray analysis.