Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1993-08-09
1995-09-26
Berch, Mark L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
540364, C07D205085, C07D46300
Patent
active
054535034
ABSTRACT:
7.beta.-Amino-3-hydroxy-1-carba(1-dethia)-3-cephem-4-carboxylic acid esters are provided via cyclization of cis-3-(substituted amino)-1-(2-substituted 2-oxoethyl)-4-substituted azetidinones. The 7.beta.-amino-3-hydroxy-1-carba(1-dethia)-3-cephem-4-carboxylic acid esters are useful chiral intermediates to .beta.-lactam antibiotics.
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Aikins James
Gardner John P.
Jackson Billy G.
Rizzo John R.
Tao Eddie V.
Berch Mark L.
Cantrell Paul R.
Eli Lilly and Company
Sales James J.
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