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CAS 61270-71-1

(6R,7R)-7-Amino-8-oxo-3-([[1-(sulfomethyl)-1H-tetrazol-5-yl]sulfanyl]methyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Codes: Cefonicid-012

Application context (from source-drug indications)

Bacterial infectionCefonicid Sodium

Source drugs (routes using this intermediate)

DrugTierExpiry
Cefonicid SodiumTier 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.

Cefonicid SodiumOptimised routesteps: 8total yield: 13.5g(Cefonicid Sodium)
aminomethanesulfonic acid→Phthalic anhydride→(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)methanesulfonic acid→(1,3-dioxoisoindol-2-yl)methanesulfonyl chloride→(5-sulfanyl-1H-1,2,3,4-tetrazol-1-yl)methanesulfonic acid→N-tert-butyl-1-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)methanesulfonamide→1-amino-N-tert-butylmethanesulfonamide→N-tert-butyl-1-{[(methylsulfanyl)methanethioyl]amino}methanesulfonamide→N-tert-butyl-1-(5-sulfanyl-1H-1,2,3,4-tetrazol-1-yl)methanesulfonamide→{[(methylsulfanyl)methanethioyl]amino}methanesulfonic acid→(6R,7R)-3-(Acetoxymethyl)-7-amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid→(6R,7R)-7-Amino-8-oxo-3-([[1-(sulfomethyl)-1H-tetrazol-5-yl]sulfanyl]methyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid→(1R)-2-Chloro-2-oxo-1-phenylethyl dichloroacetate→(6R,7R)-3-[(Acetyloxy)methyl]-7-[[(2R)-2-hydroxy-2-phenylacetyl]amino]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid→Formic acid 2-chloro-2-oxo-1(R)-phenylethyl ester<-fgf->O-Formyl-D-mandelic acid chloride<-fgf->D-O-Formylmandeolyl chloride

Intermediates available on this site

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This is a CAS-level registry record: registrations across routes are merged. Supplier offers and buyer demands will be matched on this CAS as the primary key.