Suarez-Castillo, Oscar R.; Melendez-Rodriguez, Myriam; Castelan-Duarte, Luis Enrique; Sanchez-Zavala, Maricruz; Rivera-Becerril, Ernesto; Morales-Rios, Martha S.; Joseph-Nathan, Pedro Tetrahedron Asymmetry, 2009 , vol. 20, # 20 p. 2374 - 2389