Potassium Cyanide → 4-Methyl-4-[4-(1-[2-(trimethylsilyl)ethoxy]methyl-1H-pyrrolo[2,3-b]pyridin-4-yl)-1H-pyrazol-1-yl]pentanenitrile
Reaction equation
CS(O[CH2:6][CH2:7][C:8]([CH3:32])([N:10]1[CH:14]=[C:13]([C:15]2[CH:20]=[CH:19][N:18]=[C:17]3[N:21]([CH2:24][O:25][CH2:26][CH2:27][Si:28]([CH3:31])([CH3:30])[CH3:29])[CH:22]=[CH:23][C:16]=23)[CH:12]=[N:11]1)[CH3:9])(=O)=O.[C-:33]#[N:34].[K+]>CN(C=O)C.O>[CH3:32][C:8]([N:10]1[CH:14]=[C:13]([C:15]2[CH:20]=[CH:19][N:18]=[C:17]3[N:21]([CH2:24][O:25][CH2:26][CH2:27][Si:28]([CH3:30])([CH3:29])[CH3:31])[CH:22]=[CH:23][C:16]=23)[CH:12]=[N:11]1)([CH3:9])[CH2:7][CH2:6][C:33]#[N:34]Participants
5
Reactant 2
Product 1
Reagents, catalysts & solvents 2
Conditions
- Temperature
- 125 °C
Procedure
A mixture of 3-methyl-3-[4-(1-[2-(trimethylsilyl)ethoxy]methyl-1H-pyrrolo[2,3-b]pyridin-4-yl)-1H-pyrazol-1-yl]butyl methanesulfonate (42 mg, 0.000088 mol) and potassium cyanide (46 mg, 0.000702 mol) in DMF (1 mL) was heated in the microwave reactor for 30 min at 125° C. followed by additional 30 min at 135° C. The mixture was then diluted with water, and the product was extracted with three portions of MTBE. The combined extracts were dried over sodium sulfate, filtered and concentrated to give 61 mg of crude 4-methyl-4-[4-(1-[2-(trimethylsilyl)ethoxy]methyl-1H-pyrrolo-[2,3-b]pyridin-4-yl)-1H-pyrazol-1-yl]pentanenitrile, which was used without further purification. MS(ES): 410 (M+1).
Workup
- extractionthe product was extracted with three portions of MTBE
- dry with materialThe combined extracts were dried over sodium sulfate
- filtrationfiltered
- concentrationconcentrated
Sources & evidence
- ORD record
- ord-c83e5be7e8fc4a5ca9b34c1ce7584e9c
- Source dataset
- uspto-grants-2009_10
- Patent number
- US07598257B2
Reaction notes
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