R-7-(3-aminomethy-4-methoxyimino-3-methyl-pyrrolidin-1-yl)-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydo-[1,8]naphthyridine-3-carboxylic acid and l-aspartic acid salt, process for the preparation thereof and pharmaceutical composition comprising the same for antimicrobial

Disclosed herein are R-7-(3-aminomethyl-4-methoxyimino-3-methyl-pyrrolidin-1-yl)-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-[1,8]naphthyridine-3-carboxylic acid and L-aspartic acid salt, process for the preparation thereof and pharmaceutical composition comprising the same for antimicrobial. Because t...

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Hauptverfasser: RYU JEI MAN, CHOI DONG RACK, YANG JIN, PYUN SUNG JAE, YOON SUE HYE, KIM SEUNG HWAN, SEONG SEUNG KYOO
Format: Patent
Sprache:eng
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Zusammenfassung:Disclosed herein are R-7-(3-aminomethyl-4-methoxyimino-3-methyl-pyrrolidin-1-yl)-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-[1,8]naphthyridine-3-carboxylic acid and L-aspartic acid salt, process for the preparation thereof and pharmaceutical composition comprising the same for antimicrobial. Because the R-7-(3-aminomethyl-4-methoxyimino-3-methyl-pyrrolidin-1-yl)-1-cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-[1,8]naphthyridine-3-carboxylic acid and L-aspartic acid salt is more soluble and less toxic and has less side effects as an antimicrobial agent than hydrochloride and the other salts (D-aspartate and phosphate) conventionally used, the salt may be useful for oral and injectable administration.