Hirota, Kosaku; Maruhashi, Kazuo; Asao, Tetsuji; Kitamura, Norihiko; Maki, Yoshifumi; Senda, Shigeo Chemical & Pharmaceutical Bulletin, 1983 , vol. 31, # 11 p. 3959 - 3966 Title/Abstract Full Text Show Details Van Tinh, Dang; Stadlbauer, Wolfgang Journal of Heterocyclic Chemistry, 1996 , vol. 33, # 4 p. 1025 - 1030