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CAS 169960-20-7
5-amino-2-{[(6R,7R)-7-amino-2-carboxylato-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]methyl}-1-(2-hydroxyethyl)-1H-pyrazol-2-ium
Codes：Cefoselis Sulfate-031
Application context (from source-drug indications)
细菌感染硫酸头孢噻利
Source drugs (routes using this intermediate)
| Drug | Tier | Expiry |
|---|---|---|
| 硫酸头孢噻利Cefoselis Sulfate | Tier C — Watch / trade | - |
Position in synthesis routes (up/downstream chain)
Ordered by route registration; left → right is the synthesis direction. The highlighted node is the current CAS; others link to their own profiles.
4-Chloro-2(Z)-(methoxyimino)-3-oxobutyric acid→5-amino-2-{[(6R,7R)-7-amino-2-carboxylato-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]methyl}-1-(2-hydroxyethyl)-1H-pyrazol-2-ium→3-amino-1-{[(6R,7R)-2-carboxylato-7-[(2Z)-4-chloro-2-(methoxyimino)-3-oxobutanamido]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]methyl}-2-(2-hydroxyethyl)-2H-pyrazol-1-ium→Sulfourea→(6R,7R)-3-[[5-Amino-1-(2-hydroxyethyl)-1H-pyrazol-2-ium-2-yl]methyl]-7-[[(2Z)-2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate
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