Synthesis and structure-activity relationships of cephalosporins, 2-isocephems, and 2-oxaisocephems with C-3′ or C-7 catechol or related aromaticsKoichi Tsuji, Hiroshi Ishikawa, KOICHI YASUMURA et al.|Bioorganic & Medicinal Chemistry|1996Cited by 11
Synthesis and Biological Evaluation of a Series of New Parenteral Optically Active 3-[[(N-Alkylpyridinium-4'-yl)thio]methyl]-2-oxaisocephemsHidetsugu Tsubouchi, Hiroshi Ishikawa, Koichi Tsuji et al.|Journal of Medicinal Chemistry|1995Cited by 7