Wnuk, Stanislaw F.; Valdez, Carlos A.; Khan, Jahanzeb; Moutinho, Priscilla; Robins, Morris J.; Yang, Xiaoda; Borchardt, Ronald T.; Balzarini, Jan; De Clercq, Erik Journal of Medicinal Chemistry, 2000, vol. 43, # 6 p. 1180 - 1186 doi: 10.1021/jm990486y