3-cephem derivative crystal

Details 3-cephem derivative crystal 3-cephem derivative crystal

2005-05-03

2005-05-03

Berch, Mark L. (Department: 1624)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

06887992

ABSTRACT:
A 3-cephem derivative crystal which is a clathrate compound comprising p-methoxybenzyl ester of 7-phenylacetamide-3-formyl-3-cephem-4-carboxylic acid and dimethylformamide and a process for preparing the 3-cephem derivative crystal.

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Tanaka, Hideo et al.; “Aerobic Oxidation of 3-Iodomethyl-Δ3-cephem-4-carboxylate to 3-Formyl-Δ3-cephem-4-carboxylate through 3-Hydroperoxymethyl-Δ3-cephem-4-carboxylate”;Bull. Chem. Soc. Jpn.; vol. 69, No. 1, pp. 229-233; 1996.

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