3Seebach, D., and Prelog, V., Angew. Chemie Int. Ed. , 21,654,1982.
4Hanson, K.R., J. Amer. Chem. Soc., 88, 2731,1966.
5Hirschmann, H., and Hanson, K. R., J. Org. Chem. , 36,3293,1971.
6Tetrahedron, 30,3649,1974.
7Hanson, K.R., Ann. Rev. Biochem. ,45,307,1976.
8Prelog, V. , and Helmchen, G. ,Helv. Chim. Acta, 55, 2581,1972.
9Mislow, K. , and Raban, M. , "Topics in Stereochemis- try," Allinger, N. L. , and. Eliel, E. L. , ( Editors), Interscience, New York, 1967,Vol. 1, p. 1.
10Loewus, F. A. , Westheimer, F. H. , and Vennesland, B. , J. Amer. Chem. Soc. , 75,5018,1953.
