| 摘要 |
<p>A process for producing cephem compounds represented by general formula (2) characterized by reacting a cephem compound represented by general formula (1) with a phenol optionally together with a protonic acid and thus deblocking the amino-protective group R<1> and/or the carboxylate-protective groups R<2> and R<3> at once to give the aimed cephem compound wherein R<1> represents hydrogen, etc.; R<2> represents tert-butyl, etc.; and R<3> represents naphthylmethyl, etc.</p> |
