American Home Products Corporation
Patent: US4895861 A1, 1990 ;

Ellingboe, John W.; Lombardo, Louis J.; Alessi, Thomas R.; Nguyen, Thomas T.; Guzzo, Frieda; et al.
Journal of Medicinal Chemistry, 1993 , vol. 36, # 17 p. 2485 - 2493

Diosdado, Saioa; Lopez, Rosa; Palomo, Claudio
Chemistry - A European Journal, 2014 , vol. 20, # 21 p. 6526 - 6531