ENZYMATIC PROCESSES FOR THE PREPARATION OF (±)-2-(DIFLUOROMETHYL)-1-(ALKOXYCARBONYL)-CYCLOPROPANECARBOXYLIC ACID AND (±)-2-(VINYL)-1-(ALKOXYCARBONYL)-CYCLOPROPANECARBOXYLIC ACID

ENZYMATIC PROCESSES FOR THE PREPARATION OF (±)-2-(DIFLUOROMETHYL)-1-(ALKOXYCARBONYL)-CYCLOPROPANECARBOXYLIC ACID AND (±)-2-(VINYL)-1-(ALKOXYCARBONYL)-CYCLOPROPANECARBOXYLIC ACID

Disclosed are methods of synthesizing racemic 2-(difluoromethyl)-1-(alkoxycarbonyl)-cyclopropanecarboxylic acids and 2-(vinyl)-1-(alkoxycarbonyl)-cyclopropanecarboxylic acids and their salts, such as the dicyclohexylamine salt. Also disclosed are methods for preparing enantioenriched (1R,2R)-1-((ter...

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Bibliographische Detailangaben
Hauptverfasser: KIELBUS, Angelica, B, BURKAR, Sanjay, R, ABRAHAMSON, Michael, J, CINK, Russell, D
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
BEER
BIOCHEMISTRY
CHEMISTRY
COMPOSITIONS THEREOF
CULTURE MEDIA
ENZYMOLOGY
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE
METALLURGY
MICROBIOLOGY
MICROORGANISMS OR ENZYMES
MUTATION OR GENETIC ENGINEERING
ORGANIC CHEMISTRY
PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS
SPIRITS
VINEGAR
WINE
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Beschreibung
Zusammenfassung:Disclosed are methods of synthesizing racemic 2-(difluoromethyl)-1-(alkoxycarbonyl)-cyclopropanecarboxylic acids and 2-(vinyl)-1-(alkoxycarbonyl)-cyclopropanecarboxylic acids and their salts, such as the dicyclohexylamine salt. Also disclosed are methods for preparing enantioenriched (1R,2R)-1-((tert-butoxycarbonyl)amino)-2-(difluoromethyl)cyclopropane-1-carboxylic acid and esters of the same. These compounds are useful intermediates in the synthesis of viral protease inhibitors.