Patent Number: 7,825,241

Title: Cefdinir intermediate

Abstract: 7-[2-(2-aminothiazol-4-yl)-2-(methylcarbonyloxyimino)acetamido]-3-vinyl-c- ephem-4-carboxylic acid of formula (I), in the form of a crystalline salt and use thereof, e.g. in the preparation of pure cefdinir. In another aspect this invention relates to the compound of formula (I) in the form of a salt, optionally in crystalline form, wherein the salt is selected from the group consisting of phosphate, hydrogen phosphate, mesylate, tosylate, sulfate, hydrogen sulfate and sulfamate. ##STR00001##

Inventors: Kremminger; Peter (Kufstein, AT), Wolf; Siegfried (Brixlegg, AT), Ludescher; Johannes (Breitenbach, AT)

Assignee: Sandoz AG

International Classification: C07D 501/22 (20060101)

Expiration Date: 2019-11-02 0:00:00