申请人:Bayer Aktiengesellschaft
公开号:US04564473A1
公开(公告)日:1986-01-14
A compound of the formula ##STR1## in which R is hydrogen, or optionally substituted alkyl, alkenyl, alkinyl, aralkyl, aryl, heteroaryl, heteroaralkyl, aryloxyalkyl, heteroaryloxyalkyl, alkoxyalkyl, arylthioalkyl, heteroarylthioalkyl, alkylthioalkyl, alkoxy, aryloxy, alkylthio or arylthio. The compounds are prepared by novel processes and are suitable as intermediates for .beta.-lactam antibiotics.
公式为##STR1##的化合物,其中R是氢,或可选择取代的烷基,烯基,炔基,芳基烷基,芳基,杂芳基,杂芳基烷基,芳氧烷基,杂芳氧烷基,烷氧烷基,芳硫烷基,杂芳硫烷基,烷硫烷基,烷氧基,芳氧基,烷硫基或芳硫基。这些化合物通过新颖的方法制备,适用于β-内酰胺类抗生素的中间体。