Kirihara, Masayuki; Yoshida, Katsumi; Noguchi, Takuya; Naito, Sayuri; Matsumoto, Nobuchika; Ema, Yukinori; Torii, Motoya; Ishizuka, Yuki; Souta, Ikuo
Tetrahedron Letters, 2010 , vol. 51, # 28 p. 3619 - 3622