... HIDEO NAKAO, HIROAKI YANAGISAWA, SADAO ISHIHARA, EIJI NAKAYAMA, AKIKO ANDO, JUN-ICHI NAKAZAWA, BUNJI SHIMIZU, MASAKATSU KANEKO, MITSUo NAGANO and SHINICHI ... References 1) NAKAO, H.; H. YANAGISAWA, B. SHIMIZU, M. KANEKO, M. NAGANO & S. SUGAWARA: A new semi- synthetic 7a ... J. Antibiotics 29: 973-975, 1976 3) MIYADERA, T.; T. HASHIMOTO, H. NAKAO, B. SHIMIZU & S. SUGAWARA: Synthesis and in vitro anti ...