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Diisopropylethylamine → 2-(6-fluoro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (1-oxazol-2-yl-ethyl)-amide

HRID 245895
Notes
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Reaction equation

HRID 245895 reaction equation
[F:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6]([C:12]3[N:13]=[C:14]4[C:20]([C:21](O)=[O:22])=[CH:19][N:18]([CH2:24][O:25][CH2:26][CH2:27][Si:28]([CH3:31])([CH3:30])[CH3:29])[C:15]4=[N:16][CH:17]=3)=[N:7][N:8]2[CH3:11])=[CH:4][CH:3]=1.Cl.Cl.[O:34]1[CH:38]=[CH:37][N:36]=[C:35]1[CH:39]([NH2:41])[CH3:40].C(N(CC)C(C)C)(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F>O.CN(C=O)C>[O:34]1[CH:38]=[CH:37][N:36]=[C:35]1[CH:39]([NH:41][C:21]([C:20]1[C:14]2[C:15](=[N:16][CH:17]=[C:12]([C:6]3[C:5]4[C:9](=[CH:10][C:2]([F:1])=[CH:3][CH:4]=4)[N:8]([CH3:11])[N:7]=3)[N:13]=2)[N:18]([CH2:24][O:25][CH2:26][CH2:27][Si:28]([CH3:30])([CH3:29])[CH3:31])[CH:19]=1)=[O:22])[CH3:40]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 4

HCID 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 866779151-Oxazol-2-yl-ethylamine dihydrochloride

Product 1

HCID 71286002
2-(6-fluoro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (1-oxazol-2-yl-ethyl)-amide
Yield 97%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

A round-bottomed flask was charged with 2-(6-fluoro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (210 mg, 0.48 mmol) and 1-oxazol-2-yl-ethylamine dihydrochloride (198 mg, 0.86 mmol). DMF (2.2 ml) was added followed by N,N-diisopropylethylamine (0.55 ml, 3.15 mmol) and HATU (199 mg, 0.52 mmol). The light yellow solution was stirred at room temperature overnight. Water was added and the resulting suspension was filtered. The solid was washed with water and petroleum ether then dried under high vacuum to afford 248 mg (97%) of 2-(6-fluoro-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (1-oxazol-2-yl-ethyl)-amide as a light yellow powder.

Workup

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

Sources & evidence

ORD record
ord-ce1e004cf2f74b0b99b9ccdfa86568ee
Source dataset
uspto-grants-2014_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08658646B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes