VARENICLINE STANDARDS AND IMPURITY CONTROLS

VARENICLINE STANDARDS AND IMPURITY CONTROLS

The subject invention provides a varenicline composition that comprises varenicline, or a pharmaceutically acceptable salt thereof, and an amount of a compound selected from one or more of several mononitro, monoamine mixed aminonitro, diamino or dinitro intermediates, and the concentration of said...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BRONK KAREN SROUR, BUSCH FRANK ROBERT, WITHBROE GREGORY JOHN, SINAY TERRY GENE
Format: Patent
Sprache:eng
Schlagworte:
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS
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Beschreibung
Zusammenfassung:The subject invention provides a varenicline composition that comprises varenicline, or a pharmaceutically acceptable salt thereof, and an amount of a compound selected from one or more of several mononitro, monoamine mixed aminonitro, diamino or dinitro intermediates, and the concentration of said compound is greater than O ppm and not greater than about 500 ppm, not greater than about 100 ppm or not greater than about 10 ppm. Methods for synthesizing and using such varenicline compositions are also provided.