Water → 2-(6-fluoro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanylethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid ((R)-2,2-difluoro-1-methyl-propyl)-amide

HRID 245911

Reaction equation

HRID 245911 reaction equation
C(N(CC)C(C)C)(C)C.[F:10][C:11]1[CH:19]=[C:18]2[C:14]([C:15]([C:21]3[N:22]=[C:23]4[C:29]([C:30](O)=[O:31])=[CH:28][N:27]([CH2:33][O:34][CH2:35][CH2:36][Si:37]([CH3:40])([CH3:39])[CH3:38])[C:24]4=[N:25][CH:26]=3)=[N:16][N:17]2[CH3:20])=[CH:13][CH:12]=1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.O.FC(F)(F)C(O)=O.[F:73][C:74]([F:79])([CH3:78])[C@H:75]([NH2:77])[CH3:76]>CN(C=O)C>[F:73][C:74]([F:79])([CH3:78])[C@H:75]([NH:77][C:30]([C:29]1[C:23]2[C:24](=[N:25][CH:26]=[C:21]([C:15]3[C:14]4[C:18](=[CH:19][C:11]([F:10])=[CH:12][CH:13]=4)[N:17]([CH3:20])[N:16]=3)[N:22]=2)[N:27]([CH2:33][O:34][CH2:35][CH2:36][Si:37]([CH3:40])([CH3:39])[CH3:38])[CH:28]=1)=[O:31])[CH3:76]

Participants

7

Reactant 5

HCID 962WaterHCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 712796202-(6-fluoro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acidHCID 86677918(R)-2,2-difluoro-1-methyl-propylamine trifluoroacetate

Product 1

HCID 712860802-(6-fluoro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanylethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid ((R)-2,2-difluoro-1-methyl-propyl)-amideYield 81%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

In a round-bottomed flask, (R)-2,2-difluoro-1-methyl-propylamine trifluoroacetate (crude from Step 4) was dissolved in DMF (1.2 ml) and N,N-diisopropylethylamine (0.5 ml, 2.86 mmol) was added. Then 2-(6-fluoro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (110 mg, 0.25 mmol) was added followed by HATU (104 mg, 0.27 mmol). The yellow solution was stirred at room temperature overnight. Water was added and the suspension was filtered. The filter cake was washed with water and petroleum ether then dried under high vacuum to afford 108 mg (81%) of 2-(6-fluoro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid ((R)-2,2-difluoro-1-methyl-propyl)-amide as an off-white powder.

Workup

  1. filtrationthe suspension was filtered
  2. washThe filter cake was washed with water and petroleum ether
  3. customthen dried under high vacuum

Sources & evidence

ORD record
ord-0132097983cb4364a87047221a3419ad
Source dataset
uspto-grants-2014_02
Patent number
US08658646B2

Linked notes

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