Yamamoto, Yutaka; Yanagi, Akihiko Chemical and Pharmaceutical Bulletin, 1982 , vol. 30, # 6 p. 2003 - 2010 Title/Abstract Full Text Show Details Yamamoto, Yutaka; Yanagi, Akihiko Heterocycles, 1982 , vol. 19, # 1 p. 41 - 44