5-(2,2-Difluoroethoxy)pyrazine-2-carboxylic acid → 5-(2,2-Difluoro-ethoxy)-pyrazine-2-carboxylic acid [3-((4R,5R)-2-amino-5-fluoro-4-methyl-5,6-dihydro-4H-[1,3]oxazin-4-yl)-4-fluoro-phenyl]-amide

HRID 405733Notes

Reaction equation

HRID 405733 reaction equation
[NH2:1][C:2]1[CH:3]=[CH:4][C:5]([F:17])=[C:6]([C@:8]2([CH3:16])[C@@H:13]([F:14])[CH2:12][O:11][C:10]([NH2:15])=[N:9]2)[CH:7]=1.[F:18][CH:19]([F:31])[CH2:20][O:21][C:22]1[N:23]=[CH:24][C:25]([C:28](O)=[O:29])=[N:26][CH:27]=1>>[NH2:15][C:10]1[O:11][CH2:12][C@H:13]([F:14])[C@:8]([C:6]2[CH:7]=[C:2]([NH:1][C:28]([C:25]3[CH:24]=[N:23][C:22]([O:21][CH2:20][CH:19]([F:31])[F:18])=[CH:27][N:26]=3)=[O:29])[CH:3]=[CH:4][C:5]=2[F:17])([CH3:16])[N:9]=1

Participants

3

Reactant 2

HCID 578274665-(2,2-Difluoroethoxy)pyrazine-2-carboxylic acidHCID 86672004(4R,5R)-4-(5-amino-2-fluoro-phenyl)-5-fluoro-4-methyl-5,6-dihydro-4H-[1,3]oxazin-2-ylamine

Product 1

HCID 665591855-(2,2-Difluoro-ethoxy)-pyrazine-2-carboxylic acid [3-((4R,5R)-2-amino-5-fluoro-4-methyl-5,6-dihydro-4H-[1,3]oxazin-4-yl)-4-fluoro-phenyl]-amide

Procedure

The condensation of (4R,5R)-4-(5-amino-2-fluoro-phenyl)-5-fluoro-4-methyl-5,6-dihydro-4H-[1,3]oxazin-2-ylamine (intermediate A8.2) and 5-(2,2-difluoro-ethoxy)-pyrazine-2-carboxylic acid (CAS 1174323-38-6; WO2009091016) following procedure I yielded the title compound as a white solid. MS (ISP): m/z=428.2 [M+H]+.

Sources & evidence

ORD record
ord-bdf268b83e6141eab02956b0cb7a2297
Source dataset
uspto-grants-2014_06
Patent number
US08754075B2

Reaction notes

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