Isopropylamine → 2-[1-(1-benzhydryl-azetidin-3-yl)-6-fluoro-1H-indazol-3-yl]-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid isopropylamide

HRID 246080Notes

Reaction equation

HRID 246080 reaction equation
[CH:1]([N:14]1[CH2:17][CH:16]([N:18]2[C:26]3[C:21](=[CH:22][CH:23]=[C:24]([F:27])[CH:25]=3)[C:20]([C:28]3[N:29]=[C:30]4[C:36]([C:37](O)=[O:38])=[CH:35][N:34]([CH2:40][O:41][CH2:42][CH2:43][Si:44]([CH3:47])([CH3:46])[CH3:45])[C:31]4=[N:32][CH:33]=3)=[N:19]2)[CH2:15]1)([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.CN(C(ON1N=[N:63][C:58]2[CH:59]=CC=N[C:57]1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C(N)(C)C>CN(C=O)C>[CH:58]([NH:63][C:37]([C:36]1[C:30]2[C:31](=[N:32][CH:33]=[C:28]([C:20]3[C:21]4[C:26](=[CH:25][C:24]([F:27])=[CH:23][CH:22]=4)[N:18]([CH:16]4[CH2:17][N:14]([CH:1]([C:2]5[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=5)[C:8]5[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=5)[CH2:15]4)[N:19]=3)[N:29]=2)[N:34]([CH2:40][O:41][CH2:42][CH2:43][Si:44]([CH3:46])([CH3:47])[CH3:45])[CH:35]=1)=[O:38])([CH3:59])[CH3:57]

Participants

5

Reactant 3

HCID 6363IsopropylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 712798582-[1-(1-benzhydryl-azetidin-3-yl)-6-fluoro-1H-indazol-3-yl]-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid

Product 1

HCID 712793702-[1-(1-benzhydryl-azetidin-3-yl)-6-fluoro-1H-indazol-3-yl]-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid isopropylamideYield 54%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 2-[1-(1-benzhydryl-azetidin-3-yl)-6-fluoro-1H-indazol-3-yl]-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid (130 mg, 0.20 mmol) in DMF (2 mL) were added HATU (84 mg, 0.22 mmol) and isopropylamine (86 μL, 1.00 mmol). The reaction mixture was stirred at room temperature overnight then quenched with water and extracted with EtOAc (2×). The combined organics were washed with water (3×) and brine then dried over MgSO4 and concentrated. The residue was purified by silica gel chromatography with 50% EtOAc/hexanes to isolate 74 mg (54%) of 2-[1-(1-benzhydryl-azetidin-3-yl)-6-fluoro-1H-indazol-3-yl]-5-(2-trimethylsilanyl-ethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid isopropylamide as an off-white foamy solid.

Workup

  1. customthen quenched with water
  2. extractionextracted with EtOAc (2×)
  3. washThe combined organics were washed with water (3×) and brine
  4. dry with materialthen dried over MgSO4
  5. concentrationconcentrated
  6. customThe residue was purified by silica gel chromatography with 50% EtOAc/hexanes

Sources & evidence

ORD record
ord-d1918548e73a403f81b7c9a9fea793d6
Source dataset
uspto-grants-2014_02
Patent number
US08658646B2

Reaction notes

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