Miranda, Luis D.; Cruz-Almanza, Raymundo; Pavon, Miriam; Alva, Edith; Muchowski, Joseph M.
Tetrahedron Letters, 1999 , vol. 40, # 40 p. 7153 - 7157

De la Mora, Marco A.; Cuevas, Erick; Muchowski, Joseph M.; Cruz-Almanza, Raymundo
Tetrahedron Letters, 2001 , vol. 42, # 32 p. 5351 - 5353