ELI LILLY AND COMPANY
Patent: WO2005/37796 A1, 2005 ;
Location in patent: Page/Page column 131 ;

Boehringer Ingelheim International GmbH
Patent: EP1598343 A1, 2005 ;
Location in patent: Page/Page column 55 ;

Levesque, Patrick; Fournier, Pierre-Andre
Journal of Organic Chemistry, 2010 , vol. 75, # 20 p. 7033 - 7036

Hooker Chemicals and Plastics Corp.
Patent: US4343951 A1, 1982 ;

Laeva; Nosova; Lipunova; Golovchenko; Adonin; Parmon; Charushin
Russian Journal of Organic Chemistry, 2009 , vol. 45, # 6 p. 913 - 920

Ren, Lei; Lian, Xiao-Lei; Gong, Liu-Zhu
Chemistry - A European Journal, 2013 , vol. 19, # 10 p. 3315 - 3318

Jackson, Alexander; Guilbert, Benedicte B.; Plant, Stuart D.; Goggi, Julian; Battle, Mark R.; Woodcraft, John L.; Gaeta, Alessandra; Jones, Clare L.; Bouvet, Denis R.; Jones, Paul A.; O'Shea, Dennis M.; Zheng, Penny Hao; Brown, Samantha L.; Ewan, Amanda L.; Trigg, William
Bioorganic and Medicinal Chemistry Letters, 2013 , vol. 23, # 3 p. 821 - 826