Astles, Peter C.; Brown, Thomas J.; Halley, Frank; Handscombe, Caroline M.; Harris, Neil V.; Majid, Tahir N.; McCarthy, Clive; McLay, Lain M.; Morley, Andrew; Porter, Barry; Roach, Alan G.; Sargent, Carol; Smith, Christopher; Walsh, Roger J. A.
Journal of Medicinal Chemistry, 2000 , vol. 43, # 5 p. 900 - 910

Eli Lilly and Company
Patent: US6358971 B1, 2002 ;