PROCESS FOR THE PREPARATION OF METHYL 6-(2,4-DICHLOROPHENYL)-5-[4-[(3S)-1-(3-FLUOROPROPYL)PYRROLIDIN-3-YL]OXYPHENYL]-8,9-DIHYDRO-7H-BENZO[7]ANNULENE-2-CARBOXYLATE

PROCESS FOR THE PREPARATION OF METHYL 6-(2,4-DICHLOROPHENYL)-5-[4-[(3S)-1-(3-FLUOROPROPYL)PYRROLIDIN-3-YL]OXYPHENYL]-8,9-DIHYDRO-7H-BENZO[7]ANNULENE-2-CARBOXYLATE

Herein is provided a novel process for the preparation of methyl 6-(2,4-dichlorophenyl)-5-[4-[(3S)-1-(3-fluoropropyl)pyrrolidin-3-yl]oxyphenyl]-8,9-dihydro-7H-benzo[7]annulene-2-carboxylate by a Suzuki coupling of compound (3), wherein LG represents a leaving group, with an organoboron reagent:Compo...

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Bibliographische Detailangaben
Hauptverfasser: TABART, Michel, RABION, Alain, WEHREY, Christian
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Zusammenfassung:Herein is provided a novel process for the preparation of methyl 6-(2,4-dichlorophenyl)-5-[4-[(3S)-1-(3-fluoropropyl)pyrrolidin-3-yl]oxyphenyl]-8,9-dihydro-7H-benzo[7]annulene-2-carboxylate by a Suzuki coupling of compound (3), wherein LG represents a leaving group, with an organoboron reagent:Compound (3) is obtained by activation of compound (4) with a leaving group LG, and compound (4) is obtained by alpha-arylation of methyl 5-oxo-6,7,8,9-tetrahydro-5H-benzo[7]annulene-2-carboxylate with 1-LG′-2,4-dichlorobenzene, wherein LG′ represents a leaving group: