Water → N-(1-Ethyl-1H-pyrazol-3-yl)-3-[(9-fluoro-4-methyl-5-oxo-2,3,4,5-tetrahydro-1,4-benzoxazepin-8-yl)oxy]-5-{[(S)-1-methyl-2-(methyloxy)ethyl]oxy}benzamide

HRID 548704Notes

Reaction equation

HRID 548704 reaction equation
CC([Si](C)(C)[O:6][CH2:7][CH2:8][N:9]([CH3:21])[C:10](=[O:20])[C:11]1[CH:16]=[CH:15][C:14](F)=[C:13]([F:18])[C:12]=1F)(C)C.[CH2:24]([N:26]1[CH:30]=[CH:29][C:28]([NH:31][C:32](=[O:46])[C:33]2[CH:38]=[C:37]([O:39][C@@H:40]([CH3:44])[CH2:41][O:42][CH3:43])[CH:36]=[C:35]([OH:45])[CH:34]=2)=[N:27]1)[CH3:25].C(=O)([O-])[O-].[K+].[K+].O>CC(N(C)C)=O>[CH2:24]([N:26]1[CH:30]=[CH:29][C:28]([NH:31][C:32](=[O:46])[C:33]2[CH:38]=[C:37]([O:39][C@@H:40]([CH3:44])[CH2:41][O:42][CH3:43])[CH:36]=[C:35]([O:45][C:14]3[CH:15]=[CH:16][C:11]4[C:10](=[O:20])[N:9]([CH3:21])[CH2:8][CH2:7][O:6][C:12]=4[C:13]=3[F:18])[CH:34]=2)=[N:27]1)[CH3:25]

Participants

6

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 57663171N-(2-{[(1,1-Dimethylethyl)(dimethyl)silyl]oxy}ethyl)-2,3,4-trifluoro-N-methylbenzamideHCID 59127176N-(1-Ethyl-1H-pyrazol-3-yl)-3-hydroxy-5-{[(1S)-1-methyl-2-(methyloxy)ethyl]oxy}benzamide

Product 1

HCID 15949499N-(1-Ethyl-1H-pyrazol-3-yl)-3-[(9-fluoro-4-methyl-5-oxo-2,3,4,5-tetrahydro-1,4-benzoxazepin-8-yl)oxy]-5-{[(S)-1-methyl-2-(methyloxy)ethyl]oxy}benzamideYield 68.1%

Reagents, catalysts & solvents 1

HCID 31374DimethylacetamideSolvent

Conditions

Temperature
140 °C

Procedure

A suspension of N-(2-{[(1,1-dimethylethyl)(dimethyl)silyl]oxy}ethyl)-2,3,4-trifluoro-N-methylbenzamide (300 mg, 0.86 mmol), N-(1-ethyl-1H-pyrazol-3-yl)-3-hydroxy-5-{[(1S)-1-methyl-2-(methyloxy)ethyl]oxy}benzamide (290 mg, 0.91 mmol) and potassium carbonate (237 mg, 1.73 mmol) in DMA (20 mL) was heated to 140° C. for 4 hours. The reaction was poured into water (100 mL) and extracted with ethyl acetate (3×50 mL). The combined organic phases were washed with brine (50 mL) and dried (MgSO4), filtered and evaporated to give an orange oil. This was purified by column chromatography on alumina, eluting with 30-100% ethyl acetate in isohexane, to give the desired product as a colourless oil (300 mg).

Workup

  1. extractionextracted with ethyl acetate (3×50 mL)
  2. washThe combined organic phases were washed with brine (50 mL)
  3. dry with materialdried (MgSO4)
  4. filtrationfiltered
  5. customevaporated
  6. customto give an orange oil
  7. customThis was purified by column chromatography on alumina
  8. washeluting with 30-100% ethyl acetate in isohexane

Sources & evidence

ORD record
ord-41f3497112704fce96f3dcc55df72470
Source dataset
uspto-grants-2011_05
Patent number
US07943607B2

Reaction notes

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