Abstract:
The present disclosure relates to compounds having antimicrobial activity, compositions comprising said compounds in combination with β-lactam antibiotics, and methods of using the compounds and compositions.
Abstract:
The present invention relates to a new crystal form of cefoperazone sodium and the method for making said crystal form. The new crystal form has the following characteristics: orthorhombic crystal, space group F222, unit cell dimensions a=52.15Å, b=51.87Å and c=4.95 Å.
Abstract:
The invention relates to processes for the preparation of crystalline polymorphic forms of cefdinir of formula I. More particularly, it relates to the preparation of crystalline polymorphic forms of cefdinir designated as Forms B and C. The invention also relates to pharmaceutical compositions that include the polymorphic forms B and C, and the use of the compositions for treating bacterial infections.
Abstract:
The invention relates to processes for the preparation of crystalline polymorphic forms of cefdinir of formula (I). More particularly, it relates to the preparation of crystalline polymorphic forms of cefdinir designated as Forms B and C. The invention also relates to pharmaceutical compositions that include the polymorphic forms B and C, and the use of the compositions for treating bacterial infections.
Abstract:
The present invention relates to a process for preparation of highly pure amorphous and crystalline forms of cefditoren pivoxil and pharmaceutical compositions comprising highly pure amorphous and crystalline forms of cefditoren pivoxil. The present invention also relates to a method of treating infections using highly pure amorphous and crystalline forms of cefditoren pivoxil. The highly pure cefditoren pivoxil has a purity greater than 98.5% and contains less than 1.0% of the E-isomer impurity and less than 1 % of the Δ 2 isomer impurity.
Abstract:
This invention provides cross-linked glycopeptide - cephalosporin compounds and pharmaceutically acceptable salts thereof which are useful as antibiotics. This invention also provides pharmaceutical compositions containing such compounds; methods for treating bacterial infections in a mammal using such compounds; and processes and intermediates useful for preparing such compounds.
Abstract:
The present invention relates to an improved process for the preparation of Cefditoren of formula (I), the said process comprising the steps of: i) converting the compound of formula (II) to a compound of the formula (III) using TPP and sodium iodide in the presence of THF, water, and base; ii) reacting the compound of formula (III) with 4-methyl-5-formyl-thiazole to produce a compound of formula (IV); iii) deesterifying the compound of the formula (IV) to yield compound of formula (V); iv) converting the compound of formula (V) to compound of formula (VI) in the presence of a base and solvent; v) converting the compound of formula (VI) into compound of formula (VII) by enzymatic hydrolysis; and vi) reacting compound of formula (VII) with compound of formula (VIII) in the presence of solvent and base to produce compound of formula (I).
Abstract:
A pharmaceutically active compound having a carboxylic acid group-COOH as a part of its chemical structure which -COOH group is in form of a carboxylic acid ester.
Abstract:
A pharmaceutically active compound having a carboxylic acid group-COOH as a part of its chemical structure which -COOH group is in form of a carboxylic acid ester.