Eli Lilly and Company
Patent: US6417200 B1, 2002 ;

Dill, Maren; Baier, Moritz C.; Mecking, Stefan; Woell, Dominik
Angewandte Chemie - International Edition, 2013 , vol. 52, # 47 p. 12435 - 12438
Angew. Chem., 2013 , vol. 125, # 47 p. 12662 - 12666

Skerlj, Renato; Bridger, Gary; McEachern, Ernie; Harwig, Curtis; Smith, Chris; Wilson, Trevor; Veale, Duane; Yee, Helen; Crawford, Jason; Skupinska, Krystyna; Wauthy, Rossana; Yang, Wen; Zhu, Yongbao; Bogucki, David; Di Fluri, Maria; Langille, Jonathon; Huskens, Dana; De Clercq, Erik; Schols, Dominique
Bioorganic and Medicinal Chemistry Letters, 2011 , vol. 21, # 1 p. 262 - 266

Keller-Schierlein,W. et al.
Helvetica Chimica Acta, 1972 , vol. 55, # 1 p. 198 - 205

Keller-Schierlein,W. et al.
Helvetica Chimica Acta, 1972 , vol. 55, # 1 p. 198 - 205

Crosby, John; Moilliet, Jock; Parratt, Julian S.; Turner, Nicolas J.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1994 , # 13 p. 1679 - 1688

Keller-Schierlein,W. et al.
Helvetica Chimica Acta, 1972 , vol. 55, # 1 p. 198 - 205