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Rafferty, Michael F.; Wilson, David S.; Monn, James A.; Krass, Polina; Borchardt, Ronald T.; Grunewald, Gary L.
Journal of Medicinal Chemistry, 1982 , vol. 25, # 10 p. 1198 - 1204

Bioorganic and Medicinal Chemistry, , vol. 19, # 9 p. 2850 - 2858