1-(4-Amino-3-fluorophenyl)pyrazin-2(1H)-one → 5-chloro-thiophene-2-carboxylic acid {(1RS,2SR,4SR)-4-[2-fluoro-4-(2-oxo-2H-pyrazin-1-yl)-phenylcarbamoyl]-2-hydroxy-cyclopentylmethyl}-amide
Reaktionsgleichung
CO[C:3]([CH:5]1[CH2:9][CH:8]([OH:10])[CH:7]([CH2:11][NH:12][C:13]([C:15]2[S:16][C:17]([Cl:20])=[CH:18][CH:19]=2)=[O:14])[CH2:6]1)=[O:4].[NH2:21][C:22]1[CH:27]=[CH:26][C:25]([N:28]2[CH:33]=[CH:32][N:31]=[CH:30][C:29]2=[O:34])=[CH:24][C:23]=1[F:35]>>[F:35][C:23]1[CH:24]=[C:25]([N:28]2[CH:33]=[CH:32][N:31]=[CH:30][C:29]2=[O:34])[CH:26]=[CH:27][C:22]=1[NH:21][C:3]([CH:5]1[CH2:6][CH:7]([CH2:11][NH:12][C:13]([C:15]2[S:16][C:17]([Cl:20])=[CH:18][CH:19]=2)=[O:14])[CH:8]([OH:10])[CH2:9]1)=[O:4]Komponenten
3
Edukt 2
Produkt 1
Versuchsvorschrift
In analogy to example 21C, (1SR,3RS,4SR)-3-{[(5-chloro-thiophene-2-carbonyl)-amino]-methyl}-4-hydroxy-cyclopentanecarboxylic acid methyl ester was reacted with 1-(4-amino-3-fluoro-phenyl)-1H-pyrazin-2-one (prepared from 2-fluoro-4-iodoaniline by reaction with 1H-pyrazin-2-one, Cu(I)I, N,N′-dimethylethylenediamine and cesium carbonate in dioxane at 120° C.) to give 5-chloro-thiophene-2-carboxylic acid {(1RS,2SR,4SR)-4-[2-fluoro-4-(2-oxo-2H-pyrazin-1-yl)-phenylcarbamoyl]-2-hydroxy-cyclopentylmethyl}-amide. Orange solid. MS: 491.3. ([M+H]+).