申请人:Belyk Kevin
公开号:US20100286122A1
公开(公告)日:2010-11-11
An efficient synthesis for the preparation of N-[(3R,6S)-6-(2,3-difluorophenyl)-2-oxo-1-(2,2,2-trifluoroethyl)azepan-3-yl]-4-(2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyridin-
1
-yl)piperidine-1-carboxamide, by coupling (3R,6S)-3-amino-6-(2,3-difluorophenyl)-1-(2,2,2-trifluoroethyl)azepan-2-one and 2-oxo-1-(4-piperidinyl)-2,3-dihydro-1H-imidazo[4,5-b]pyridine dihydrochloride with 1,1′-carbonyldiimidazole (“CDI”) as carbonyl source; an efficient preparation of the potassium salt of N-[(3R,6S)-6-(2,3-difluorophenyl)-2-oxo-1-(2,2,2-trifluoroethyl)azepan-3-yl]-4-(2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyridin-
1
-yl)piperidine-1-carboxamide; efficient syntheses for the preparation of intermediates (3R,6S)-3-amino-6-(2,3-difluorophenyl)-1-(2,2,2-trifluoroethyl)azepan-2-one and 2-oxo-1-(4-piperidinyl)-2,3-dihydro-1H-imidazo[4,5-b]pyridine dihydrochloride, and the potassium salt of N-[(3R,6S)-6-(2,3-difluorophenyl)-2-oxo-1-(2,2,2-trifluoroethyl)azepan-3-yl]-4-(2-oxo-2,3-dihydro-1H-imidazo[4,5-b]pyridin-1-yl)piperidine-1-carboxamide including the potassium salt ethanolate and potassium salt hydrate.
一种高效合成方法,用于制备N-[(3R,6S)-6-(2,3-二氟苯基)-2-氧代-1-(2,2,2-三氟乙基)氮杂七环-3-基]-4-(2-氧代-2,3-二氢-1H-咪唑[4,5-b]吡啶-1-基)哌啶-1-羧酰胺,通过将(3R,6S)-3-氨基-6-(2,3-二氟苯基)-1-(2,2,2-三氟乙基)氮杂七环-2-酮和2-氧代-1-(4-哌啶基)-2,3-二氢-1H-咪唑[4,5-b]吡啶二盐酸盐与1,1'-羰基二咪唑(“CDI”)做为羰基源进行偶联;一种高效制备钾盐的方法,用于制备N-[(3R,6S)-6-(2,3-二氟苯基)-2-氧代-1-(2,2,2-三氟乙基)氮杂七环-3-基]-4-(2-氧代-2,3-二氢-1H-咪唑[4,5-b]吡啶-1-基)哌啶-1-羧酰胺;高效合成方法,用于制备中间体(3R,6S)-3-氨基-6-(2,3-二氟苯基)-1-(2,2,2-三氟乙基)氮杂七环-2-酮和2-氧代-1-(4-哌啶基)-2,3-二氢-1H-咪唑[4,5-b]吡啶二盐酸盐,以及N-[(3R,6S)-6-(2,3-二氟苯基)-2-氧代-1-(2,2,2-三氟乙基)氮杂七环-3-基]-4-(2-氧代-2,3-二氢-1H-咪唑[4,5-b]吡啶-1-基)哌啶-1-羧酰胺的钾盐乙醇酸盐和钾盐水合物的高效制备方法。