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CAS 957-68-6
(6R,7R)-3-(Acetoxymethyl)-7-amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
Codes：Cefoselis Sulfate-037
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.
(6R,7R)-3-(Acetoxymethyl)-7-amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid→Trimethylsilyl (6R,7R)-3-(iodomethyl)-8-oxo-7-[(trimethylsilyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate→2-[5-(Formylamino)-1H-pyrazol-1-yl]ethyl formate→(6R,7R)-7-Amino-3-[[5-amino-1-(2-hydroxyethyl)-1H-pyrazol-2-ium-2-yl]methyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate hydrochloride→S-(benzo[d]thiazol-2-yl) (Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)ethanethioate→(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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