JPS577484A - Preparation of cephalosporin derivative - Google Patents
Preparation of cephalosporin derivativeInfo
- Publication number
- JPS577484A JPS577484A JP8090580A JP8090580A JPS577484A JP S577484 A JPS577484 A JP S577484A JP 8090580 A JP8090580 A JP 8090580A JP 8090580 A JP8090580 A JP 8090580A JP S577484 A JPS577484 A JP S577484A
- Authority
- JP
- Japan
- Prior art keywords
- compound
- formula
- solvent
- hydrolyzed
- give
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Cephalosporin Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
NEW MATERIAL:A compound of formula I (R1 is acetoxy or heterocyclic ring thio containing nitrogen ; n is 2 or 3).
EXAMPLE: 7β-[ D-2-( 6,7-Dihydroxychromone-3-carboxyamido )-2-( 4-hydroxyphenyl)acetamido]-3-acetoxymethyl-3-cephem-4-carboxylic acid.
USE: An antimicrobial agent.
PROCESS: A compound of formula II is reacted with a compound of formula III in the presence of an acidic catalyst, e.g. p-toluenesulfonic acid, in an inert solvent, e.g. dichloromethane, to give a compound of formula IV. The resultant compound of formula IV is then hydrolyzed in a hydrophilic solvent, e.g. methanol, and/or a mixed solvent of water with the hydrophilic solvent in the presence of a base, e.g. NaHCO3, to afford a compound of formula V, which is then hydrolyzed in the presence of an acid, e.g. p-toluenesulfonic acid, in the same solvent as described above to give the compound of formula I.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8090580A JPS577484A (en) | 1980-06-17 | 1980-06-17 | Preparation of cephalosporin derivative |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8090580A JPS577484A (en) | 1980-06-17 | 1980-06-17 | Preparation of cephalosporin derivative |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS577484A true JPS577484A (en) | 1982-01-14 |
Family
ID=13731382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8090580A Pending JPS577484A (en) | 1980-06-17 | 1980-06-17 | Preparation of cephalosporin derivative |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS577484A (en) |
-
1980
- 1980-06-17 JP JP8090580A patent/JPS577484A/en active Pending
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