申请人:Beecham Group Limited
公开号:US04282373A1
公开(公告)日:1981-08-04
Compounds of the formula (II): ##STR1## wherein X is halogen, hydroxyl or functionalized hydroxyl; Y is halogen, hydroxyl or alkoxy; R.sup.1 is a carboxylic acid group and ester thereof and amide derivative thereof or cyano; and R.sup.2 is hydrogen, a hydrocarbon, a heterocycle, a carboxylic acid group, a carboxylic acid ester, a carboxylic acid amide derivative, acyl, cyano, isocyano or an optionally substituted imine of the formula --CH.dbd.NZ or --N.dbd.CH.sub.2 wherein Z is hydrogen, alkyl, aryl, sulphonyl, --SR.sup.a, sulphoxide --SR.sup.a, or sulphonate --SR.sup.a wherein R.sup.a is alkyl of 1 to 6 carbon atoms or aryl, are useful as intermediates for the ultimate production of penicillins or cephalosporins.
式子(II)的化合物:##STR1## 其中X为卤素、羟基或官能化羟基;Y为卤素、羟基或烷氧基;R1为羧酸基及其酯、酰胺衍生物或腈基;R2为氢、烃基、杂环、羧酸基、羧酸酯、羧酸酰胺衍生物、酰基、腈基、异腈基或公式--CH.dbd.NZ或--N.dbd.CH.sub.2的可选择取代的亚胺,其中Z为氢、烷基、芳基、磺酰基、--SR.sup.a、亚磺酸--SR.sup.a,其中R.sup.a为1至6个碳原子的烷基或芳基,可用作青霉素或头孢菌素的最终生产中间体。