Abe, Masatoshi; Akiyama, Tetsuo; Umezawa, Yoji; Yamamoto, Keiichiro; Nagai, Masashi; Yamazaki, Hiroko; Ichikawa, Yuh-Ichiro; Muraoka, Yasuhiko Bioorganic and Medicinal Chemistry, 2005 , vol. 13, # 3 p. 785 - 797