Kline; Bowman; Iglewski; De Kievit; Kakai; Passador
Bioorganic and Medicinal Chemistry Letters, 1999 , vol. 9, # 24 p. 3447 - 3452

Nakayama; Kawato; Inagaki; Nakajima; Kitamura; Someya; Ohta
Organic letters, 2000 , vol. 2, # 7 p. 977 - 980