Methanol → 3-[4-(7-[2-(trimethylsilyl)-ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]pentanal O-methyloxime

HRID 1817609Notes

Reaction equation

HRID 1817609 reaction equation
[CH3:1][Si:2]([CH3:28])([CH3:27])[CH2:3][CH2:4][O:5][CH2:6][N:7]1[C:11]2[N:12]=[CH:13][N:14]=[C:15]([C:16]3[CH:17]=[N:18][N:19]([CH:21]([CH2:25][CH3:26])[CH2:22][CH:23]=O)[CH:20]=3)[C:10]=2[CH:9]=[CH:8]1.CO.Cl.[O:32]([NH2:34])[CH3:33].C(=O)(O)[O-].[K+]>O>[CH3:33][O:32][N:34]=[CH:23][CH2:22][CH:21]([N:19]1[CH:20]=[C:16]([C:15]2[C:10]3[CH:9]=[CH:8][N:7]([CH2:6][O:5][CH2:4][CH2:3][Si:2]([CH3:28])([CH3:1])[CH3:27])[C:11]=3[N:12]=[CH:13][N:14]=2)[CH:17]=[N:18]1)[CH2:25][CH3:26]

Participants

6

Reactant 4

HCID 887MethanolHCID 516893Potassium BicarbonateHCID 521874O-Methylhydroxylamine hydrochlorideHCID 574778983-[4-(7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]pentanal

Product 1

HCID 866130103-[4-(7-[2-(trimethylsilyl)-ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]pentanal O-methyloxime

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

To a solution of 3-[4-(7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]pentanal (70 mg, 0.0002 mol) in methanol (2 mL, 0.05 mol) was added methoxylamine hydrochloride (19 mg, 0.00022 mol) and potassium bicarbonate (22 mg, 0.00022 mol). The reaction was stirred at room temperature for 2 h, water was added and the product was extracted with ethyl acetate. The combined extracts were washed with saturated sodium chloride, dried over magnesium sulfate, was filtered and was concentrated to give 3-[4-(7-[2-(trimethylsilyl)-ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]pentanal O-methyloxime as a mixture of isomers (70 mg, 90%) crude product. LC/MS (M+H)+: m/z=429.

Workup

  1. extractionthe product was extracted with ethyl acetate
  2. washThe combined extracts were washed with saturated sodium chloride
  3. dry with materialdried over magnesium sulfate
  4. filtrationwas filtered
  5. concentrationwas concentrated

Sources & evidence

ORD record
ord-8a5c8a25711743929c1566f665fc4a70
Source dataset
uspto-grants-2009_10
Patent number
US07598257B2

Reaction notes

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