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公开(公告)号:US4043991A
公开(公告)日:1977-08-23
申请号:US615751
申请日:1975-09-22
IPC分类号: C07D501/06 , C07D501/14 , C07D501/18 , C07D501/22 , C07K1/00 , C07K5/06 , C07K5/078 , C07C103/52
CPC分类号: C07K5/06139 , C07K1/006 , C07K5/06026 , Y02P20/55
摘要: An improved process for producing a peptide and a cephalosporin which comprises treating a phosphoramide derivative of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are each an alkyl group, a cycloalkyl group, an aryl group or an aralkyl group, and A.sub.1 is a peptide residue or a cephalosporin residue, with a phosphorus acid to produce a peptide or a cephalosporin of the formula A.sub.1 --NH.sub.2 wherein A.sub.1 is as hereinbefore defined.
摘要翻译: 一种制备肽和头孢菌素的改进方法,包括处理下式的磷酰胺衍生物:其中R1和R2各自为烷基,环烷基,芳基或芳烷基,A1为肽 残留物或头孢菌素残基与磷酸反应以产生式A1-NH2的肽或头孢菌素,其中A1如上文所定义。
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公开(公告)号:US3978053A
公开(公告)日:1976-08-31
申请号:US528313
申请日:1974-11-29
IPC分类号: C07D501/04 , C07D499/00 , C07D501/10 , C07D501/18 , C07D501/02
CPC分类号: C07D499/00 , Y02P20/55
摘要: A process for producing a compound of the formula (I) ##SPC1##wherein R.sub.2 is a hydrogen atom or an ester protective group, which is useful as a precursor for the production of cephalosporin derivatives, comprising reacting a phosphoramide derivative of cephalosporin of the formula (II) ##SPC2##wherein R.sub.1 is a lower alkyl group and R.sub.2 is as defined above, with a phosphorus acid. A further embodiment includes preparing the phosphoramide derivative of cephalosporin of the formula (II) by reactng a compound of the formula (III) ##SPC3##wherein R.sub.1 and R.sub.2 are as defined above, with an acid compound.
摘要翻译: 一种制备式(I)化合物的方法,其中R2是氢原子或酯保护基,其可用作产生头孢菌素衍生物的前体,包括使式(II)的头孢菌素的磷酰胺衍生物, 其中R1是低级烷基,R2如上定义,与磷酸反应。 另一个实施方案包括通过将其中R 1和R 2如上定义的式(III)化合物与酸化合物反应来制备式(II)的头孢菌素的磷酰胺衍生物。
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