... VIII” ' MASATOSHI YAMATo, KUNIKO HASHIGAKI, AKIKO TSUKIOKA, and TAKAJI KOYAMA Faculty of PhaM/aaceatical Sciences, Okayama University) (Received July 5, 1976) Structural modification of the 3-hydr0xy ... 8) M. Yamato, T. Kitamura, K. Hashigaki, Y. Kuwano ...