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- W2373404351 abstract "Biapenem was synthesized by condensation of 6,7-dihydro-6-mercapto-5H-pyrazolo[1,2-a][1,2,4]- triazolium chloride(12) and (4R,5S,6S)-3-(diphenyloxy)phosphoryloxy-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1- azabicyclo[3.2.0]-hept-2-ene-2-carboxylic acid p-nitrobenzylester(13), followed by deprotection with a yield of 67.5% (based on 13). The key intermediate 12 was synthesized from hydrazine via condensation, allylation, deprotection of ketimine, formylation, bromination, cyclization, substitution, methanolysis, oxidation, deformylation, cyclization and reduction with a yield of 12%." @default.
- W2373404351 created "2016-06-24" @default.
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- W2373404351 date "2006-01-01" @default.
- W2373404351 modified "2023-09-25" @default.
- W2373404351 title "Synthesis of Biapenem" @default.
- W2373404351 hasPublicationYear "2006" @default.
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