Ito, Shunji; Kubo, Takahiro; Morita, Noboru; Matsui, Yoshitaka; Watanabe, Toshiyuki; Ohta, Akira; Fujimori, Kunihide; Murafuji, Toshihiro; Sugihara, Yoshikazu; Tajiri, Akio
Tetrahedron Letters, 2004 , vol. 45, # 14 p. 2891 - 2894