Eli Lilly and Company
Patent: US5491166 A1, 1996 ;

ELI LILLY AND COMPANY; ATHENA NEUROSCIENCES, INC.
Patent: EP652009 A1, 1995 ;
EP 0652009 A1

AVENTIS PHARMACEUTICALS INC.
Patent: US2008/139556 A1, 2008 ;
Location in patent: Page/Page column 18; 46 ;

Hein, Jason E.; Geary, Laina M.; Jaworski, Ashley A.; Hultin, Philip G.
Journal of Organic Chemistry, 2005 , vol. 70, # 24 p. 9940 - 9946

Slee; Slee, Deborah H.; Laslo; Laslo, Karen L.; Elder; Elder, John H.; Ollmann; Ollmann, Ian R.; Gustchina; Gustchina, Alla; Kervinen; Kervinen, Jukka; Zdanov; Zdanov, Alexander; Wlodawer; Wlodawer, Alexander; Wong; Wong, Chi-Huey
Journal of the American Chemical Society, 1995 , vol. 117, # 48 p. 11867 - 11878

Slee; Slee, Deborah H.; Laslo; Laslo, Karen L.; Elder; Elder, John H.; Ollmann; Ollmann, Ian R.; Gustchina; Gustchina, Alla; Kervinen; Kervinen, Jukka; Zdanov; Zdanov, Alexander; Wlodawer; Wlodawer, Alexander; Wong; Wong, Chi-Huey Journal of the American Chemical Society, 1995 ,  vol. 117,  # 48  p. 11867 - 11878