The Procter and Gamble Company
Patent: US6482843 B1, 2002 ;

Ram; Wise; Wotring; McCall; Townsend
Journal of Medicinal Chemistry, 1992 , vol. 35, # 3 p. 539 - 547

Palomares-Alonso, Francisca; Jung-Cook, Helgi; Perez-Villanueva, Jaime; Piliado, Juan Carlos; Rodriguez-Morales, Sergio; Palencia-Hernandez, Guadalupe; Lopez-Balbiaux, Nayeli; Hernandez-Campos, Alicia; Castillo, Rafael; Hernandez-Luis, Francisco
European Journal of Medicinal Chemistry, 2009 , vol. 44, # 4 p. 1794 - 1800