Water → 3-[(9-Chloro-4-methyl-5-oxo-2,3,4,5-tetrahydro-1,4-benzoxazepin-8-yl)oxy]-N-(1-methyl-1H-pyrazol-3-yl)-5-[(3S)-tetrahydrofuran-3-yloxy]benzamide

HRID 548709Notes

Reaction equation

HRID 548709 reaction equation
[OH:1][C:2]1[CH:3]=[C:4]([CH:14]=[C:15]([O:17][C@H:18]2[CH2:22][CH2:21][O:20][CH2:19]2)[CH:16]=1)[C:5]([NH:7][C:8]1[CH:12]=[CH:11][N:10]([CH3:13])[N:9]=1)=[O:6].[Si]([O:30][CH2:31][CH2:32][N:33]([CH3:45])[C:34](=[O:44])[C:35]1[CH:40]=[CH:39][C:38](F)=[C:37]([Cl:42])[C:36]=1F)(C(C)(C)C)(C)C.C(=O)([O-])[O-].[K+].[K+].O>C(#N)C>[Cl:42][C:37]1[C:36]2[O:30][CH2:31][CH2:32][N:33]([CH3:45])[C:34](=[O:44])[C:35]=2[CH:40]=[CH:39][C:38]=1[O:1][C:2]1[CH:3]=[C:4]([CH:14]=[C:15]([O:17][C@H:18]2[CH2:22][CH2:21][O:20][CH2:19]2)[CH:16]=1)[C:5]([NH:7][C:8]1[CH:12]=[CH:11][N:10]([CH3:13])[N:9]=1)=[O:6]

Participants

6

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 57663164N-(2-{[tert-Butyl(dimethyl)silyl]oxy}ethyl)-3-chloro-2,4-difluoro-N-methylbenzamideHCID 59127171HCID 59127171, compound

Product 1

HCID 159495913-[(9-Chloro-4-methyl-5-oxo-2,3,4,5-tetrahydro-1,4-benzoxazepin-8-yl)oxy]-N-(1-methyl-1H-pyrazol-3-yl)-5-[(3S)-tetrahydrofuran-3-yloxy]benzamideYield 31.9%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Conditions

Temperature
140 °C

Procedure

A mixture of 3-hydroxy-N-(1-methyl-1H-pyrazol-3-yl)-5-[(3S)-tetrahydrofuran-3-yloxy]benzamide (539 mg, 1.77 mmol), N-(2-{[tert-butyl(dimethyl)silyl]oxy}ethyl)-3-chloro-2,4-difluoro-N-methylbenzamide (539 mg, 1.77 mmol) and potassium carbonate (490 mg, 3.55 mmol) in acetonitrile (15 mL) was placed in a Smith Creator microwave reactor and heated to 140° C. for 6 hours. Distilled water was added to the reaction and the aqueous layer extracted with DCM (3×30 mL). The combined organic phase was washed with brine (30 mL), dried (MgSO4), filtered and evaporated to give a yellow oil. This was purified by column chromatography, eluting with 20-100% ethyl acetate in isohexane, to give the title compound (290 mg). 1H NMR δ (CDCl3): 2.09-2.15 (1H, m), 2.18-2.27 (1H, m), 3.23 (3H, s), 3.59 (2H, t), 3.76 (3H, s), 3.86-3.92 (1H, m), 3.94-4.00 (3H, m), 4.54 (2H, t), 4.95 (1H, d), 6.68 (1H, d), 6.78-6.81 (2H, m), 7.04-7.05 (1H, m), 7.16-7.17 (1H, m), 7.28 (1H, d), 7.70 (1H, d), 8.75 (1H, s); m/z 513 (M+H)+.

Workup

  1. extractionthe aqueous layer extracted with DCM (3×30 mL)
  2. washThe combined organic phase was washed with brine (30 mL)
  3. dry with materialdried (MgSO4)
  4. filtrationfiltered
  5. customevaporated
  6. customto give a yellow oil
  7. customThis was purified by column chromatography
  8. washeluting with 20-100% ethyl acetate in isohexane

Sources & evidence

ORD record
ord-0210abfaad374f79968a0345df974345
Source dataset
uspto-grants-2011_05
Patent number
US07943607B2

Reaction notes

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