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Patents
Patents Represented by Attorney William C. Martens, Jr.
Patents Represented by Attorney William C. Martens, Jr.
Find this attorney in the Justia Lawyer Directory
Process for the conversion of 3-methyl-3-hydroxycepham compounds
Patent number:
3932387
Abstract:
A 7-imido-3-methyl-3-hydroxycepham-4-carboxylic acid ester is reacted with a halogen reagent in the presence of an alkaline reagent to produce 2-halomethylpenams and a 3-methyl-3-cephem compound.
Type:
Grant
Filed:
March 27, 1974
Date of Patent:
January 13, 1976
Assignee:
Eli Lilly and Company
Inventors:
Stjepan P. Kukolja, Steven R. Lammert
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