JP2909145B

JP2909145B

A process for producing the compound [2S-(2 alpha ,3 beta ,5 alpha )]-3-methyl-7-oxo-3-(1H-1,2,3-triazol-1-ylmethyl)-4-thia-aza bicyclo[3 2 0]-heptane-2-carboxylic acid, (4-nitrophenyl)methyl ester, 4,4-dioxide, which comprises reacting a solution of azidopenamsulfone, 4-methoxyphenol and vinylpropi...

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Hauptverfasser: BINGU JEI RII, DEBITSUDO BURAMU, RANSAMU BII KONRO, JESHII GYANBURU, UIRIAMU BUI KARAN, RAGUHABAN KURISHUNAN
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
ORGANIC CHEMISTRY
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS
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Zusammenfassung:A process for producing the compound [2S-(2 alpha ,3 beta ,5 alpha )]-3-methyl-7-oxo-3-(1H-1,2,3-triazol-1-ylmethyl)-4-thia-aza bicyclo[3 2 0]-heptane-2-carboxylic acid, (4-nitrophenyl)methyl ester, 4,4-dioxide, which comprises reacting a solution of azidopenamsulfone, 4-methoxyphenol and vinylpropionate with a solution of bis(trimethylsilyl)acetamide and 4-methoxyphenol in toluene at 80-100 DEG C for 18-30 hours followed by filtering the resulting solution and cooling the filtrate to 0-10 DEG C.