Sodium hydride → 832717-22-3

HRID 1958445Notes

Reaction equation

HRID 1958445 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([OH:14])[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[H-].[Na+].Cl[C:18]1[C:19]2[O:26][N:25]=[C:24]([C:27]3[CH:32]=[CH:31][C:30]([S:33]([CH3:36])(=[O:35])=[O:34])=[CH:29][CH:28]=3)[C:20]=2[N:21]=[CH:22][N:23]=1>C1COCC1>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([O:14][C:18]2[C:19]3[O:26][N:25]=[C:24]([C:27]4[CH:28]=[CH:29][C:30]([S:33]([CH3:36])(=[O:34])=[O:35])=[CH:31][CH:32]=4)[C:20]=3[N:21]=[CH:22][N:23]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Participants

5

Reactant 3

HCID 24758Sodium hydrideHCID 643502Tert-butyl 4-hydroxypiperidine-1-carboxylateHCID 218975727-Chloro-3-[4-(methanesulfonyl)phenyl][1,2]oxazolo[4,5-d]pyrimidine

Product 1

HCID 11397354832717-22-3Yield 61%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

4-hydroxy-piperidine-1-carboxylic acid tert-butyl ester (0.1 g, 0.49 mmol) was dissolved in anhydrous THF (5 mL) and treated with NaH, 60% oil dispersion (20 mg, 0.49 mmol) at ambient temperature. After stirring for 10 min, 7-chloro-3-(4-methanesulfonyl-phenyl)-isoxazolo[4,5-d]pyrimidine (0.15 g, 0.49 mmol) was added. The reaction was stirred for 3 h and concentrated under vacuum. The residue was purified by column chromatography using ethyl acetate and hexane (1/1) to afford 4-[3-(4-methanesulfonyl-phenyl)-isoxazolo[4,5-d]pyrimidin-7-yloxy]-piperidine-1-carboxylic acid tert-butyl ester (0.14 g, 61%). 1H NMR (400 Mz, DMSO-d6) δ 8.51 (s, 1H), 8.42 (d, J=7.1, 2H), 8.34 (d, J=7.1, 2H), 4.11˜3.83 (m, 4H), 3.52 (m, 1H), 3.26 (s, 3H), 1.41˜1.22 (m, 4H). LCMS 475.3 [M+H].

Workup

  1. stirringThe reaction was stirred for 3 h
  2. concentrationconcentrated under vacuum
  3. customThe residue was purified by column chromatography

Sources & evidence

ORD record
ord-97a9befcbf7a464792a69994d90517c7
Source dataset
uspto-grants-2013_04
Patent number
US08410119B2

Reaction notes

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