N. B.  Kalamkar, Puranik, V. G., and Dhavale, D. D., ?Synthesis of C1- and C8a-epimers of (+)-castanospermine from D-glucose derived gamma,delta-epoxyazide: intramolecular 5-endo epoxide opening approach?, Tetrahedron, vol. 67, no. 15, pp. 2773-2778, 2011.