ChemicalBook CAS DataBase List Ceftezole Impurity 22

Ceftezole Impurity 22 synthesis

3synthesis methods

Product Name:Ceftezole Impurity 22
CAS Number:43194-95-2
Molecular formula:C8H12N4O3
Molecular Weight:212.21

21732-17-2
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3282-30-2
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43194-95-2
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Yield:43194-95-2 96%

Steps:

4

Example 4; 4-[5-amino-l-(2,6-difluoro-benzoyl)-lH-[l,2,4]triazol-3- ylamino]-N-(2-tetrazol-l-yl-acetyl)-benzenesulfonamide (Cpd4); 4a; EPO Using the mixed anhydride formation procedure, 1.6 g (96 %) of Compound 4a was generated from tetraazolylacetic acid (1.0 g) and pivaloyl chloride (1.0 g). ¹H NMR (300 MHz, CDCCl₃) δ 8.90 (s, 1 H), 5.45 (s, 2 H), 1.21 (s, 9 H).

References:

WO2006/42215,2006,A1 Location in patent:Page/Page column 35-36

21743-75-9
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3282-30-2
370 suppliers
$19.85/100ml

43194-95-2
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References

876014-31-2
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3282-30-2
370 suppliers
$19.85/100ml

43194-95-2
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References

Ceftezole Impurity 22 Related Search:

1H-TETRAZOLE-1-ACETYL CHLORIDE 2-Mercapto-1,3,4-thiadiazol

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