Caldwell, Richard A.; Zhou, Lingwen
Journal of the American Chemical Society, 1994 , vol. 116, # 6 p. 2271 - 2275

Wang, Selina C.; Troast, Dawn M.; Conda-Sheridan, Martin; Zuo, Gang; LaGarde, Donna; Louie, Janis; Tantillo, Dean J.
Journal of Organic Chemistry, 2009 , vol. 74, # 20 p. 7822 - 7833