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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1902514Generated: November 3, 2026

Ethyl Acetate → (6S)-4-Nitrobenzyl 3-hydroxy-8-oxo-7-(N-phenylacetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate

https://huagongshe.com/reaction/1902514

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantOzoneHCID 24823—
ReactantHCID 70524504HCID 70524504—
SolventMethanolHCID 887—
Product(6S)-4-Nitrobenzyl 3-hydroxy-8-oxo-7-(N-phenylacetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylateHCID 67685788—

Reaction Steps

A solution of 4-nitrobenzyl 7-(2-phenylacetamido)-3-acetoxymethylenecepham-4-carboxylate (1.97 g), ethyl acetate (30 ml) and methanol (7.5 ml) was treated with ozone in a similar manner to that of Example 1 (4) to give 4-nitrobenzyl 7-(2-phenylacetamido)-3-hydroxy-3cephem-4-carboxylate (400 mg.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04363807
Source datasetuspto-grants-1982_12
ORD IDord-62d4a1bf756a49e9bdd712f4d5f76e15
Source noteuspto-grants-1982_12