Abstract:
The present invention provides a process for the preparation of the compound of formula (I) wherein X represents iodo or chloro. The compound of formula (I) is an important intermediate in the preparation of Cefepime or its pharmaceutically acceptable salts.
Abstract:
A DNA sequence is for a recombinant D-amino acid oxidase with catalytic activity on cephalosporin C that is not less than 25% higher than that of its parent.
Abstract:
This invention relates to a novel process for the preparation of 3-cyclic-ether-substituted cephalosporins of formula (I): wherein the group CO2-R is a carboxylic acid or a carboxylate salt and R2 has the formula (a): wherein A is selected form the group consisting of C6-10aryl, C1-10heteroaryl and C1-10heterocyclyl; A is selected from the group consisting of hydrogen, C1-6alkyl, C3-10cycloalkyl, C6-10aryl C1-6alkyl(CO)(C1-6)alkyl-O-, HO(CO)(C1-6)alkyl, mono-(C6-10aryl)(C1-6alkyl), di-(C6-10aryl)(C1-6alkyl) and tri-(C6-10aryl)(C1-6alkyl); from a zwitterionic compound of formula (II), or from a compound of formula (V): wherein R is as defined above and R is para-nitrobenzyl or allyl. The invention also relates to the preparation of the above compounds of formula (II) and (V).
Abstract:
A process for the production of cefotaxime in acetone/water and its use in the production of a sodium salt of cefotaxime and a crystalline sodium salt of cefotaxime in form of rounded agglomerates and in form of needles.
Abstract:
The invention relates to processes for the preparation of cephem carboxylic acids. More particularly, it relates to the preparation of ceftriaxone and cefotaxime and pharmaceutical compositions that include the ceftriaxone and cefotaxime.
Abstract:
The invention relates to processes for the preparation of cephem carboxylic acids. More particularly, it relates to the preparation of ceftriaxone and cefotaxime and pharmaceutical compositions that include the ceftriaxone and cefotaxime.
Abstract:
The present invention relates to an improved process for the preparation of cefadroxil of the Formula (I), more particularly, the present invention relates to an improved process for the preparation of cefadroxil having water content in the range of 4-5 %.