申请人:Bayer Aktiengesellschaft
公开号:US03930949A1
公开(公告)日:1976-01-06
7-Amino-.DELTA..sup.3 -cephem derivatives of the formula: ##SPC1## Wherein: R is hydrogen; hydroxy; amino; cyano; --O--CO--NH.sub.2 ; ##EQU1## wherein n is an integer from 4 to 6; --O--CO--R.sup.1 ; --NH--CO--R.sup.1 or --S--CS--O--R.sup.1 wherein R.sup.1 is alkyl of 1 to 4 carbon atoms; -S-Het or Het wherein Het is a 5- or 6-membered hetero-aromatic ring unsubstituted or substituted by 1 to 3 alkyl moieties of 1 to 3 carbon atoms or said ring having a positive charge; and X is hydrogen; or, is a negative charge if R has a positive charge, Are obtained by reacting a compound of the formula: ##SPC2## Or a salt thereof with an inorganic or organic base, Wherein: R and X are as above defined; R.sup.2 is phenyl, phenoxy, 2-thienyl or 2-furyl, unsubstituted or substituted in the ring by amino, hydroxy or alkyl of 1 to 3 carbon atoms; and R.sup.3 is hydrogen, amino, hydroxy or alkyl of 1 to 3 carbon atoms, With penicillinacylase which is bound by convalent bonds to a water-insoluble carrier.
公式:7-氨基-.DELTA..sup.3-头孢菌素衍生物的公式:##SPC1## 其中:R为氢; 羟基; 氨基; 腈基; --O--CO--NH.sub.2; ##EQU1## 其中n为4至6的整数; --O--CO--R.sup.1; --NH--CO--R.sup.1或--S--CS--O--R.sup.1,其中R.sup.1为1至4个碳原子的烷基; -S-Het或Het,其中Het为未取代或取代的5或6成员杂环芳香环,其由1至3个碳原子的烷基基团或带有正电荷的环置换; X为氢; 或者,如果R带有正电荷,则为负电荷。 通过将公式的化合物:##SPC2##或其盐与无机或有机碱反应,可以获得上述衍生物,其中:R和X如上所定义; R.sup.2为苯基,苯氧基,2-噻吩基或2-呋喃基,在环中未取代或取代为1至3个碳原子的氨基,羟基或烷基;和R.sup.3为氢,氨基,羟基或1至3个碳原子的烷基。该反应使用通过共价键结合到水不溶性载体上的青霉素酰化酶进行。