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Studies on the Synthesis of 3-Vinylcephalosporins

✍ Scribed by Pitlik, János ;Batta, Gyula ;Sztaricskai, Ferenc

Publisher: John Wiley and Sons
Year: 1992
Tongue: English
Weight: 315 KB
Volume: 1992
Category: Article
ISSN: 0947-3440
DOI: 10.1002/jlac.1992199201148

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✦ Synopsis

Abstract

Several novel cephalosporins 4–19 having substituted vinyl functionalities at C‐3 were synthesized. The title compounds were prepared by a short and simple reaction sequence starting from protected 7‐aminocephalosporanic acid derivatives 1–3 and involving cleavage with iodotrimethylsilane, phosphonium salt formation, and subsequent Wittig reaction. The effect of the substituents are also discussed.

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