Dumaitre, Bernard; Dodic, Nerina
Journal of Medicinal Chemistry, 1996 , vol. 39, # 8 p. 1635 - 1644

Krafft, Grant A.; Meinke, Peter T.
Tetrahedron Letters, 1985 , vol. 26, # 16 p. 1947 - 1950

Maier, Guenther; Floegel, Ulrich; Reisenauer, Hans Peter; Hess, B. Andes; Schaad, Lawrence J.
Chemische Berichte, 1991 , vol. 124, # 11 p. 2609 - 2612