Cefixime Impurity synthesis
- Product Name:Cefixime Impurity
- CAS Number:33748-00-4
- Molecular formula:C17H16N2O4S
- Molecular Weight:344.38
![(6R-trans)-3-Ethenyl-8-oxo-7-[(phenylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic Acid Diphenylmethyl Ester](/CAS/20210111/GIF/94796-13-1.gif)
94796-13-1
2 suppliers
inquiry
33748-00-4
25 suppliers
inquiry
Yield:33748-00-4 96%
Reaction Conditions:
in methanol; for 1 h;Reflux;
Steps:
3.3 Preparation of compound GVNA
The reaction solution was distilled under vacuum at a controlled temperature of 50 ° C. After recovery of acetone, a white solid was precipitated and filtered. The resulting cake was refluxed in 400 ml of methanol for 1 hour and cooled to 0 ° C. Filtration gave 469.7 g of white compound GVNA (GVNA yield 96%, calculated as GCLH).
References:
CN104045655,2016,B Location in patent:Paragraph 0060
119608-90-1
5 suppliers
inquiry
33748-00-4
25 suppliers
inquiry
64308-63-0
83 suppliers
$59.00/250mg
33748-00-4
25 suppliers
inquiry
104146-10-3
267 suppliers
$5.00/5g
33748-00-4
25 suppliers
inquiry