Bristol-Myers Squibb Company
Patent: US2007/129379 A1, 2007 ;
Location in patent: Page/Page column 28 ;

Kim, Sun Hee; Tran, Martin T.; Ruebsam, Frank; Xiang, Alan X.; Ayida, Benjamin; McGuire, Helen; Ellis, David; Blazel, Julie; Tran, Chinh V.; Murphy, Douglas E.; Webber, Stephen E.; Zhou, Yuefen; Shah, Amit M.; Tsan, Mei; Showalter, Richard E.; Patel, Rupal; Gobbi, Alberto; LeBrun, Laurie A.; Bartkowski, Darian M.; Nolan, Thomas G.; Norris, Daniel A.; Sergeeva, Maria V.; Kirkovsky, Leo; Zhao, Qiang; Han, Qing; Kissinger, Charles R.
Bioorganic and Medicinal Chemistry Letters, 2008 , vol. 18, # 14 p. 4181 - 4185

Reinecke, Manfred G.; Newsom, James G.; Chen, Lao-Jer
Journal of the American Chemical Society, 1981 , vol. 103, # 10 p. 2760 - 2769

Abbott Laboratories
Patent: US4873259 A1, 1989 ;

Deryagina, E. N.; Korchevin, N. A.; Sukhomazova, E. N.; Russavskaya, N. V.; Voronkov, M. G.
Russian Journal of Organic Chemistry, 1993 , vol. 29, # 11.2 p. 1863 - 1867
Zhurnal Organicheskoi Khimii, 1993 , vol. 29, # 11 p. 2246 - 2250

Sunthankar; Tilak
Proceedings - Indian Academy of Sciences, Section A, 1950 , # 32 p. 396,401

ELI LILLY AND COMPANY
Patent: WO2005/92885 A1, 2005 ;
Location in patent: Page/Page column 51 ;
WO 2005/092885 A1

Sandoz Ltd.
Patent: US4737516 A1, 1988 ;

Tedjamulia, Marvin L.; Tominaga, Yoshinori; Castle, Raymond N.
Journal of Heterocyclic Chemistry, 1983 , vol. 20, p. 1485 - 1495