Preparation and use of 7-[(2-carboalkoxy-1-methylethenyl)amino]-

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

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E07D50128

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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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patent: 5221739 (1993-06-01), Wildfeuer
Peter H. Bentley, Gerald Brooks and Iskander I. Zomaya, "Phthalidyl Esters of Cephalosporins", Terahedron Letters, No. 41, pp. 3739-3742, 1976.
Elisabeth Dane and Toni Dockner, ".beta.-Dicarbonylverbindungen als Aminoschutzgruppen bei Peptidsynthesen, (III.)", Chemische Berichte, 98, pp. 789-796, 1965.
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.

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