St. Jude Children's Research Hospital
Patent: US5371081 A1, 1994 ;

Thimmaiah, Kuntebommanahalli N.; Horton, Julie K.; Seshardi, Ramakrishnan; Israel, Mervyn; Houghton, Janet A.; et al.
Journal of Medicinal Chemistry, 1992 , vol. 35, # 18 p. 3358 - 3364