Pharmacia and Upjohn Company
Patent: US5877317 A1, 1999 ;

Ducry, Laurent; Reinelt, Stefan; Seiler, Paul; Diederich, Francois; Bolin, David R.; Campbell, Robert M.; Olson, Gary L.
Helvetica Chimica Acta, 1999 , vol. 82, # 12 p. 2432 - 2447

Iliev, Boyan; Linden, Anthony; Heimgartner, Heinz
Helvetica Chimica Acta, 2003 , vol. 86, # 9 p. 3215 - 3234

JAPAN TOBACCO INC.
Patent: US2012/322837 A1, 2012 ;
US 20120322837 A1

FMC Corporation
Patent: US4405357 A1, 1983 ;

Rowbottom, Martin W.; Faraoni, Raffaella; Chao, Qi; Campbell, Brian T.; Lai, Andiliy G.; Setti, Eduardo; Ezawa, Maiko; Sprankle, Kelly G.; Abraham, Sunny; Tran, Lan; Struss, Brian; Gibney, Michael; Armstrong, Robert C.; Gunawardane, Ruwanthi N.; Nepomuceno, Ronald R.; Valenta, Ianina; Hua, Helen; Gardner, Michael F.; Cramer, Merryl D.; Gitnick, Dana; Insko, Darren E.; Apuy, Julius L.; Jones-Bolin, Susan; Ghose, Arup K.; Herbertz, Torsten; Ator, Mark A.; Dorsey, Bruce D.; Ruggeri, Bruce; Williams, Michael; Bhagwat, Shripad; James, Joyce; Holladay, Mark W.
Journal of Medicinal Chemistry, 2012 , vol. 55, # 3 p. 1082 - 1105

Rega, Miriam; Candal, Paloma; Jimenez, Carlos; Rodriguez, Jaime
European Journal of Organic Chemistry, 2007 , # 6 p. 934 - 942

JAPAN TOBACCO INC.
Patent: US2012/322837 A1, 2012 ;
Location in patent: Page/Page column 98 ;
US 20120322837 A1

Bristol-Myers Squibb Company; Hewawasam, Piyasena; Kadow, John F.; Lopez, Omar D.; Meanwell, Nicholas A.; Tu, Yong; Wang, Alan Xiangdong; Xu, Ningning; Gupta, Samayamunthula Venkata Satya Arun Kumar; Srinivasu, Pothukanuri; Kumar, Indasi Gopi; Kumar, Ponugupati Suresh; Belema, Makonen; Fridell, Robert A.; Gao, Min; Lemm, Julie A.; O'Boyle, II, Donald R.; Sun, Jin-Hua; Wang, Chunfu; Wang, Ying-Kai
Patent: US2013/183269 A1, 2013 ;

Komatsu; Okada; Moritake; Tsuchida
Bulletin of the Chemical Society of Japan, 2001 , vol. 74, # 9 p. 1695 - 1702