Cefazedone
Cefazedone Basic information
- Product Name:
- Cefazedone
- Synonyms:
-
- (6R,7R)-7-[[2-(3,5-Dichloro-4-oxo-1(4H)-pyridinyl)acetyl]aMino]-3-[[(5-Methyl-1,3,4- thiadiazol-2-yl)thio]Methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid
- (6R-trans)-Cefazedone
- Cefazedone acid
- (6R,7R)-7-[[2-(3,5-dichloro-4-oxopyridin-1-yl)acetyl]amino]-3-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanylmethyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
- 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-[[2-(3,5-dichloro-4-oxo-1(4H)-pyridinyl)acetyl]amino]-3-[[(5-methyl-1,3,4-thiadiazol-2-yl)thio]methyl]-8-oxo-, (6R,7R)-
- (6r-trans)--8-oxo
- 1(4h)-pyridinyl)acetyl)amino)-3-(((5-methyl-1,3,4-thiadiazol-2-yl)thio)methyl)
- 7-(((3,5-dichloro-4-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylicaci
- CAS:
- 56187-47-4
- MF:
- C18H15Cl2N5O5S3
- MW:
- 548.44
- EINECS:
- 611-363-5
- Product Categories:
-
- Bases & Related Reagents
- Heterocycles
- Intermediates & Fine Chemicals
- Nucleotides
- Pharmaceuticals
- Sulfur & Selenium Compounds
- Mol File:
- 56187-47-4.mol
Cefazedone Chemical Properties
- Melting point:
- 157 - 160°C
- Density
- 1.78±0.1 g/cm3(Predicted)
- storage temp.
- 2-8°C
- solubility
- DMSO (Slightly), Methanol (Slightly)
- pka
- 2.61±0.50(Predicted)
- form
- Solid
- color
- White to Off-White
- CAS DataBase Reference
- 56187-47-4(CAS DataBase Reference)
Cefazedone Usage And Synthesis
Originator
Cefazedone Sodium,Arocor Holdings Inc.
Uses
Semi-synthetic cephalosporin antibiotic. Antibacterial.
Definition
ChEBI: A cephalosporin compound having [(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]methyl and [(3,5-dichloro-4-oxopyridin-1(4H)-yl)acetamido side-groups.
Manufacturing Process
A solution of 1 eq. of the tert-butyl ester of 7-aminocephalosporanic acid and
1 eq. of dicyclohexylcarbodiimide in 100 ml of methylene chloride/DMF (1:1)
is cooled to 0°C. The mixture is combined with 1 eq. of 3,5-dichloro-4-
pyridone-1-acetic acid; after 5 min the ice bath is removed and the mixture
agitated for another 30 min at 25°C. The thus-formed urea is filtered off and
the filtrate filtered over silica gel (eluent: ethyl acetate/1% methanol). The
solvent is concentrated by evaporation, and the thus-obtained tert-butyl ester
of 7-(3,5-dichloro-1,4-dihydro-4-oxo-1-pyridylacetamido)cephalosporanic acid
is crystallized from ether.
1 eq. of the tert-butyl ester is dissolved in 30 ml of trifluoroacetic acid. After
30 minutes, the solution is evaporated and the thus-produced 7-(3,5-dichloro-
1,4-dihydro-4-oxo-1-pyridylacetamido)cephalosporanic acid crystallized from
ether.
1 eq. of the obtained 7-(3,5-dichloro-1,4-dihydro-4-oxo-1-pyridylacetamido)
cephalosporanic acid is dissolved in 60 ml of saturated aqueous sodium
bicarbonate solution at a pH of below 7 and combined with 1 eq. of 5-methyl-
1,3,4-thiadiazole-2-thiol in 20 ml of acetone. The reaction solution is agitated
for 2 hours at 80°C and at a pH of 6.3 under a nitrogen atmosphere. The
acetone is thereupon removed, the solution is washed with ether and acidified
to pH 2. The thus-obtained 3-(1-methyltetrazolyl-5-mercaptomethyl)-7-(3,5-
dichloro-1,4-dihydro-4-oxo-1-pyridylacetamido)-3-cephem-4-carboxylic acid is
filtered off and dried. IR spectrum confirmed the structure of cefazedone.
In practice it is usually used as sodium salt.
Therapeutic Function
Antibiotic
CefazedoneSupplier
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