7-Amino-3-methyl-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acid → 7-[[2-[4-(Azidomethyl)phenyl]acetyl]amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

HRID 442355

Reaction equation

HRID 442355 reaction equation
[N:1]([CH2:4][C:5]1[CH:10]=[CH:9][C:8]([CH2:11][C:12](Cl)=[O:13])=[CH:7][CH:6]=1)=[N+:2]=[N-:3].[NH2:15][CH:16]1[C:23](=[O:24])[N:22]2[CH:17]1[S:18][CH2:19][C:20]([CH3:28])=[C:21]2[C:25]([OH:27])=[O:26]>C(OCC)(=O)C>[N:1]([CH2:4][C:5]1[CH:10]=[CH:9][C:8]([CH2:11][C:12]([NH:15][CH:16]2[C:23](=[O:24])[N:22]3[CH:17]2[S:18][CH2:19][C:20]([CH3:28])=[C:21]3[C:25]([OH:27])=[O:26])=[O:13])=[CH:7][CH:6]=1)=[N+:2]=[N-:3]

Participants

4

Reactant 2

HCID 18837-Amino-3-methyl-8-oxo-5-thia-1-azabicyclo(4.2.0)oct-2-ene-2-carboxylic acidHCID 20505454p-Azidomethylphenylacetyl chloride

Product 1

HCID 227677437-[[2-[4-(Azidomethyl)phenyl]acetyl]amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Procedure

A mixture of p-azidomethylphenylacetyl chloride (0.6 g) and 7-amino-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (0.6 g) in 250 ml of ethyl acetate was refluxed for 50 minutes after which the solvent was removed under vacuum yielding an oily residue which was purified by chromatography using 60 g of silica gel and benzene-acetone as the eluant to give 7-[[2-[4-(azidomethyl)phenyl]acetyl]amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid. M.P. 154°-155° C.

Workup

  1. temperaturewas refluxed for 50 minutes after which the solvent
  2. customwas removed under vacuum
  3. customyielding an oily residue which
  4. customwas purified by chromatography

Sources & evidence

ORD record
ord-4ea0b5cbd23e419c92656ae7ae6f5b98
Source dataset
uspto-grants-1977_08
Patent number
US04045438

Linked notes

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