Morita, Hiroshi; Tomizawa, Yuichiro; Deguchi, Jun; Ishikawa, Tokio; Arai, Hiroko; Zaima, Kazumasa; Hosoya, Takahiro; Hirasawa, Yusuke; Matsumoto, Takayuki; Kamata, Katsuo; Ekasari, Wiwied; Widyawaruyanti, Aty; Wahyuni, Tutik Sri; Zaini, Noor Cholies; Honda, Toshio Bioorganic and Medicinal Chemistry, 2009 , vol. 17, # 24 p. 8234 - 8240