Bergeron, Raymond J.; Wiegand, Jan; McManis, James S.; McCosar, Bruce H.; Weimar, William R.; Brittenham, Gary M.; Smith, Richard E.
Journal of Medicinal Chemistry, 1999 , vol. 42, # 13 p. 2432 - 2440

Teruya, Toshiaki; Sasaki, Hiroaki; Fukazawa, Hidesuke; Suenaga, Kiyotake
Organic Letters, 2009 , vol. 11, # 21 p. 5062 - 5065