Duffy; Darcy; Delorme; Dillon; Eppley; Erickson-Miller; Giampa; Hopson; Huang; Keenan; Lamb; Leong; Liu; Miller; Price; Rosen; Shah; Shaw; Smith; Stark; Tian; Tyree; Wiggall; Zhang; Luengo
Journal of Medicinal Chemistry, 2001 , vol. 44, # 22 p. 3730 - 3745

Pilgram
Journal of Heterocyclic Chemistry, 1980 , vol. 17, # 7 p. 1413 - 1416

Tietze, Lutz F.; Evers, Holger; Hippe, Thomas; Steinmetz, Adrian; Toepken, Enno
European Journal of Organic Chemistry, 2001 , # 9 p. 1631 - 1634