Bristol-Myers Squibb Co.
Patent: US5648385 A1, 1997 ;

Atwal, Karnail S.; Ferrara, Francis N.; Ding, Charles Z.; Grover, Gary J.; Sleph, Paul G.; Dzwonczyk, Steven; Baird, Anne J.; Normandin, Diane E.
Journal of Medicinal Chemistry, 1996 , vol. 39, # 1 p. 304 - 313