Sodium Hydroxide → {3-oxo-1-[4-(7-{[2-(trimethylsilyl)ethoxy]methyl}-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]cyclobutyl}acetonitrile

HRID 717867Notes

Reaction equation

HRID 717867 reaction equation
[OH:1][CH:2]1[CH2:5][C:4]([CH2:28][C:29]#[N:30])([N:6]2[CH:10]=[C:9]([C:11]3[C:12]4[CH:19]=[CH:18][N:17]([CH2:20][O:21][CH2:22][CH2:23][Si:24]([CH3:27])([CH3:26])[CH3:25])[C:13]=4[N:14]=[CH:15][N:16]=3)[CH:8]=[N:7]2)[CH2:3]1.CC(OI1(OC(C)=O)(OC(C)=O)OC(=O)C2C=CC=CC1=2)=O.[OH-].[Na+]>C(Cl)Cl>[O:1]=[C:2]1[CH2:3][C:4]([CH2:28][C:29]#[N:30])([N:6]2[CH:10]=[C:9]([C:11]3[C:12]4[CH:19]=[CH:18][N:17]([CH2:20][O:21][CH2:22][CH2:23][Si:24]([CH3:25])([CH3:27])[CH3:26])[C:13]=4[N:14]=[CH:15][N:16]=3)[CH:8]=[N:7]2)[CH2:5]1

Participants

5

Reactant 3

HCID 14798Sodium HydroxideHCID 159087TriacetoxyperiodinaneHCID 670171833-Hydroxy-1-[4-(7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]cyclobutylacetonitrile

Product 1

HCID 69675509{3-oxo-1-[4-(7-{[2-(trimethylsilyl)ethoxy]methyl}-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]cyclobutyl}acetonitrile

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of {3-hydroxy-1-[4-(7-{[2-(trimethylsilyl)ethoxy]methyl}-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]cyclobutyl}acetonitrile (9.3 g, 22 mmol, as a mixture of diastereomers from Step 6) in methylene chloride (300 mL) at 0° C. was added Dess-Martin periodinane (10.0 g, 24 mmol). After a reaction time of 2 hours, the mixture was poured into 1N NaOH and extracted with three portions of DCM. The combined extracts were washed with further 1N NaOH, dried over sodium sulfate, decanted and the solvent removed in vacuo. Flash chromatography, eluting with a gradient from 0-10% MeOH in DCM afforded product as a yellow foam. Theoretical yield assumed for use in Step 8. 1H NMR (300 MHz, CDCl3): δ 8.85 (s, 1H), 8.50 (s, 1H), 8.35 (s, 1H), 7.42 (d, 1H), 6.80 (d, 1H), 5.68 (s, 2H), 4.11-4.00 (m, 2H), 3.74-3.61 (m, 2H), 3.59-3.50 (m, 2H), 3.31 (s, 2H), 0.96-0.88 (m, 2H), −0.06 (s, 9H); LCMS (M+H)+: 423.0.

Workup

  1. extractionextracted with three portions of DCM
  2. washThe combined extracts were washed with further 1N NaOH
  3. dry with materialdried over sodium sulfate
  4. customdecanted
  5. customthe solvent removed in vacuo
  6. washFlash chromatography, eluting with a gradient from 0-10% MeOH in DCM afforded product as a yellow foam

Sources & evidence

ORD record
ord-2c343787ad1d47a98c608275f853ab19
Source dataset
uspto-grants-2015_11
Patent number
US09193733B2

Reaction notes

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