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102772-66-7

102772-66-7 structure

102772-66-7 structure

Name: Ceftazidime t-Butyl Ester
Chemical Name: Ceftazidime t-Butyl Ester
CAS Number: 102772-66-7
Molecular Formula: C₂₆H₃₀N₆O₇S₂
Molecular Weight: 602.682
Create Date: 2018-08-25 06:03:20
Modify Date: 2026-07-09 13:10:39

Name	Ceftazidime t-Butyl Ester
Synonyms	Ceftazidime Impurity E (Ceftazidime Impurity） 1-[[(6R,7R)-7-[[(2Z)-2-(2-Amino-4-thiazolyl)-2-[[2-(1,1-diMethylethoxy)-1,1-diMethyl-2-oxoethoxy]iMino]acetyl]amino]-2-cboxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]Methyl]pyridiniuM Inner Salt (6R,7R)-7-{[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-{[(1-tert-butoxy-2-methyl-1-oxopropan-2-yl)oxy]imino}acetyl]amino}-8-oxo-3-(pyridinium-1-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-cboxylate Ceftazidime impurity 5/Ceftazidime Impurity E/(6R,7R)-7-[[(2Z)-2-(2-aminothiazol-4-yl)-2-[[2-(1,1-dimethylethoxy)-1,1-dimethyl-2-oxoethoxy]imino]acetyl]amino]-8-oxo-3-[(1-pyridinio)methyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-cboxylate Pyridinium, 1-[[(6R,7R)-7-[[(2Z)-2-(2-amino-4-thiazolyl)-2-[[2-(1,1-dimethylethoxy)-1,1-dimethyl-2-oxoethoxy]imino]-1-oxoethyl]amino]-2-carboxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]methyl]-, inner salt Ceftazidime t-Butyl Ester Ceftazidime Impurity E Ceftazidime Impurity 5 Ceftazidime Impurity 5(Ceftazidime Impurity E) Ceftazidime Impurity E (Ceftazidime t-Butyl Ester ) (6R,7R)-7-((Z)-2-(2-aminothiazol-4-yl)-2-(((1-(tert-butoxy)-2-methyl-1-oxopropan-2-yl)oxy)imino)acetamido)-8-oxo-3-(pyridin-1-ium-1-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-cboxylate Ceftazidime tert-butyl ester Ceftazidime Imp E CeftazidiMe t-Butyl Ester Ceftazidime N-2 Intermediate Ceftazidime Impurity D Ceftazidime Impurity E (6R,7R)-7-({(2Z)-2-(2-Amino-1,3-thiazol-4-yl)-2-[({2-methyl-1-[(2-methyl-2-propanyl)oxy]-1-oxo-2-propanyl}oxy)imino]acetyl}amino)-8-oxo-3-(1-pyridiniumylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate (6R,7R)-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-[2-methyl-1-[(2-methylpropan-2-yl)oxy]-1-oxopropan-2-yl]oxyiminoacetyl]amino]-8-oxo-3-(pyridin-1-ium-1-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

Molecular Formula	C₂₆H₃₀N₆O₇S₂
Molecular Weight	602.682
Exact Mass	602.161743
PSA	237.98000
LogP	-1.15
Storage condition	-20°C

Hazard Codes	Xn

89604-92-2 structure

89604-92-2

100988-63-4 structure

100988-63-4

~%

102772-66-7 structure

102772-66-7

Literature: ORCHID CHEMICALS and PHARMACEUTICALS LIMITED Patent: WO2008/41100 A1, 2008 ; Location in patent: Page/Page column 12-13 ;

Precursor 2
89604-92-2 100988-63-4
DownStream 1
72558-82-8

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