Process for preparing a hydroxyphenylglycine compound
申请人:Tanabe Seiyaku Co., Ltd.
公开号:US04175206A1
公开(公告)日:1979-11-20
Glyoxylic acid or a salt of glyoxylic, an ammonium salt of an organic or inorganic acid and a phenol compound of the formula: ##STR1## wherein n is an integer of one to three, are condensed together to prepare hydroxyphenylglycine compounds of the formula: ##STR2## wherein n is the same as defined above. The hydroxyphenylglycine compounds thus obtained are useful as intermediates in the synthesis of penicillins and cephalosporins.