1-(4-Amino-3-fluorophenyl)pyrazin-2(1H)-one → 5-chloro-thiophene-2-carboxylic acid {(1S,2S,4R)-4-[2-fluoro-4-(2-oxo-2H-pyrazin-1-yl)-phenylcarbamoyl]-2-hydroxy-cyclopentyl}-amide

HRID 2244666Notes

Reaction equation

HRID 2244666 reaction equation
CO[C:3]([C@H:5]1[CH2:9][C@H:8]([OH:10])[C@@H:7]([NH:11][C:12]([C:14]2[S:15][C:16]([Cl:19])=[CH:17][CH:18]=2)=[O:13])[CH2:6]1)=[O:4].[NH2:20][C:21]1[CH:26]=[CH:25][C:24]([N:27]2[CH:32]=[CH:31][N:30]=[CH:29][C:28]2=[O:33])=[CH:23][C:22]=1[F:34]>>[F:34][C:22]1[CH:23]=[C:24]([N:27]2[CH:32]=[CH:31][N:30]=[CH:29][C:28]2=[O:33])[CH:25]=[CH:26][C:21]=1[NH:20][C:3]([C@@H:5]1[CH2:6][C@H:7]([NH:11][C:12]([C:14]2[S:15][C:16]([Cl:19])=[CH:17][CH:18]=2)=[O:13])[C@@H:8]([OH:10])[CH2:9]1)=[O:4]

Participants

3

Reactant 2

HCID 230867741-(4-Amino-3-fluorophenyl)pyrazin-2(1H)-oneHCID 58826431(1R,3S,4S)-3-[(5-chloro-thiophene-2-carbonyl)-amino]-4-hydroxy-cyclopentanecarboxylic acid methyl ester

Product 1

HCID 160663195-chloro-thiophene-2-carboxylic acid {(1S,2S,4R)-4-[2-fluoro-4-(2-oxo-2H-pyrazin-1-yl)-phenylcarbamoyl]-2-hydroxy-cyclopentyl}-amide

Procedure

In analogy to example 1C, (1R,3S,4S)-3-[(5-chloro-thiophene-2-carbonyl)-amino]-4-hydroxy-cyclopentanecarboxylic acid methyl ester (example 1B) 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 {(1S,2S,4R)-4-[2-fluoro-4-(2-oxo-2H-pyrazin-1-yl)-phenylcarbamoyl]-2-hydroxy-cyclopentyl}-amide. Yellow solid. MS: 477.0 ([M+H]+)

Sources & evidence

ORD record
ord-d415f72f85be4ffb987ae7ee27481d4a
Source dataset
uspto-grants-2010_03
Patent number
US07678917B2

Reaction notes

Loading…