Yamamoto, Yoshinori; Onuki, Setsuko; Yumoto, Masatoshi; Asao, Naoki Journal of the American Chemical Society, 1994 , vol. 116, # 1 p. 421 - 422 Title/Abstract Full Text View citing articles Show Details Yamamoto, Yoshinori; Onuki, Setsuko; Yumoto, Masatoshi; Asao, Naoki Heterocycles, 1998 , vol. 47, # 2 p. 765 - 780