102772-66-7

Usage

Uses

1. Used in Pharmaceutical Applications:
1-[[(6R,7R)-7-[[(2Z)-2-(2-AMino-4-thiazolyl)-2-[[2-(1,1-diMethylethoxy)-1,1-diMethyl-2-oxoethoxy]iMino]acetyl]aMino]-2-carboxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]Methyl]pyridiniuM Inner Salt is used as an active pharmaceutical ingredient (API) for the development of new drugs targeting various diseases and conditions. Its unique molecular structure and functional groups may provide novel mechanisms of action and therapeutic benefits.
2. Used in Chemical Research:
1-[[(6R,7R)-7-[[(2Z)-2-(2-AMino-4-thiazolyl)-2-[[2-(1,1-diMethylethoxy)-1,1-diMethyl-2-oxoethoxy]iMino]acetyl]aMino]-2-carboxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]Methyl]pyridiniuM Inner Salt can be utilized in chemical research as a starting material or intermediate for the synthesis of other complex organic molecules. Its unique structure and functional groups may offer new insights into chemical reactions and mechanisms, potentially leading to the discovery of new compounds with specific applications.
3. Used in Material Science:
The compound's structural features and properties may make it suitable for use in the development of new materials with specific characteristics, such as improved stability, reactivity, or selectivity. It could be employed in the design of catalysts, sensors, or other advanced materials.

Upstream product

• 89604-92-2 (Z)-2-<<<1-(2-amino-4-thiazolyl)-2-<(2-benzothiazolyl)thio>-2-oxoethylidene>amino>oxy>-2-methyl propanoic acid 1,1-dimethylethyl ester 
• 100988-63-4 3-<(1-pyridinio)methyl>cephem 

Downstream Products

• 72558-82-8 ceftazidime 

Relevant academic research and scientific papers

General Synthesis of Industrial Cephalosporin-Based Antibiotics Through Amidation with Tosyl Chloride as a Coupling Reagent

In this contribution we demonstrate the feasibility of a recently developed amidation method for a general synthesis of industrially important semi-synthetic cephalosporin antibiotics starting from readily available 7-aminocephalosporanic acid and derivatives thereof. The amidation process is based on the use of 4-toluene-sulfonyl chloride as an economically attractive coupling reagent in combination with methanol or ethyl acetate as one of the solvent components. A broad reaction scope was shown by the successful synthesis of three further cephalosporin antibiotics with different functionalities, which were obtained in high yields of 82–95 % in the reactions even under non-optimized conditions. It is noteworthy that also different oxime functionalities in the side chain of the 7′-position are tolerated as well as an ester moiety in 4′-position and a cationic functionality in 3′-position. Thus, this amidation process through an activated anhydride formed by means of 4-toluenesulfonyl chloride is a broadly applicable methodology for the synthesis of industrial semi-synthetic cephalosporin antibiotics.

Technical method for reducing ceftazidime impurity H

The invention provides a technical method for reducing a ceftazidime impurity H. The technical method is characterized in that one or more of dichloromethane, trichloromethane, carbon tetrachloride, tetrahydrofuran, acetonitrile and 2-methyltetrahydrofuran as a main solvent, tert-butyl alcohol or a mixed solvent of tert butyl alcohol and methyl alcohol is taken as a cosolvent, 7-APCA and BPTA aresubjected to a condensation reaction under the alkaline condition, ceftazidime tert-butyl ester is generated and subjected to water treatment, solvent crystallization is performed, and ceftazidime isobtained. Content of the impurity ceftazidime methyl ester (H) obtained with method in the product is smaller than 0.1%, and unknown impurities can be controlled to be 0.05% or smaller.

IMPROVED PROCESS FOR THE PREPARATION OF CEPHALOSPORIN ANTIBIOTICS

Abstract The present invention more particularly relates to a process for the preparation of cephalosporin antibiotics of the Formula (I) wherein R1 represents hydrogen, trityl, alkyl like CH3, CRaRbCOORc where Ra and Rb independently represent hydrogen or methyl and Rc represents hydrogen or (C1-C6) alkyl; R2 is carboxylate ion or COORd, where Rd represents hydrogen, ester or a counter ion which forms a salt; R3 represents hydrogen, CH3, CH2OCH3, CH2OCOCH3, CH=CH2, Formula (II).