Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1996-04-05
1997-06-10
Ford, John M.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
E07D50128
Patent
active
056376944
ABSTRACT:
This invention relates to a method of producing 3-alkanoyloxymethyl-3-cephem-4-carboxylic acids from 3-hydroxymethyl-3-cephem-4-carboxylic acids in an aqueous medium for a practical, large-scale production. Moreover, the invention provides an ideal intermediate for the process.
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Theodora W. Greene and Peter G.M. Wuts, "Protective Groups in Organic Synthesis", John Wiley & Sons, Inc., Second Edition, pp. 309-315, 372, 1991.
Nobuharu Kakeya, et al, "KY-109, A New Bifunctional Pro-drug of a Cephalosporin", The Journal of Antibiotics, vol. 38, No. 3, pp. 380-389, Mar. 1985.
Earle Van Heyningen, "The Chemistry of Cephalosporin Antibiotics. III. Acylation of Cephalosporadesates", J. Med. Chem., vol. 8, pp. 22-25, 1965.
Brodfuehrer Paul R.
Reid J. Gregory
Smith Patrick R.
Briston-Myers Squibb Company
Ford John M.
Morse David M.
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