Ethyl Acetate → (S)-4-isopropyl-3-(2-(((S)-1-(5-phenyl-1,3,4-oxadiazol-2-yl)ethyl)amino)pyrimidin-4-yl)oxazolidin-2-one

HRID 1850216Notes

Reaction equation

HRID 1850216 reaction equation
C(O[C:4]([C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1)(OCC)OCC)C.[CH:17]([C@H:20]1[CH2:24][O:23][C:22](=[O:25])[N:21]1[C:26]1[CH:31]=[CH:30][N:29]=[C:28]([NH:32][C@@H:33]([CH3:38])[C:34]([NH:36][NH2:37])=[O:35])[N:27]=1)([CH3:19])[CH3:18].C(OCC)(=O)C>CCCCCCC>[CH:17]([C@H:20]1[CH2:24][O:23][C:22](=[O:25])[N:21]1[C:26]1[CH:31]=[CH:30][N:29]=[C:28]([NH:32][C@H:33]([C:34]2[O:35][C:4]([C:11]3[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=3)=[N:37][N:36]=2)[CH3:38])[N:27]=1)([CH3:19])[CH3:18]

Participants

5

Reactant 3

HCID 8857Ethyl AcetateHCID 74268Benzene, (triethoxymethyl)-HCID 86730168(S)-2-((4-((S)-4-isopropyl-2-oxooxazolidin-3-yl)pyrimidin-2-yl)amino)propanehydrazide

Product 1

HCID 86730271(S)-4-isopropyl-3-(2-(((S)-1-(5-phenyl-1,3,4-oxadiazol-2-yl)ethyl)amino)pyrimidin-4-yl)oxazolidin-2-oneYield 17.9%

Reagents, catalysts & solvents 1

HCID 8900HeptaneSolvent

Procedure

A solution of (triethoxymethyl)benzene (360 mg, 1.6 mmol, 5.0 equiv. in 5 mL of benzene and 0.5 mL of glacial AcOH) was added to (S)-2-((4-((S)-4-isopropyl-2-oxooxazolidin-3-yl)pyrimidin-2-yl)amino)propanehydrazide (99 mg, 0.30 mmol, 1.0 equiv.), the reaction mixture was stirred at reflux for 1.5 hours, the solvent was removed to yield the crude product. Silica gel column chromatography (ethyl acetate in heptane 10 to 90%) to yield (S)-4-isopropyl-3-(2-(((S)-1-(5-phenyl-1,3,4-oxadiazol-2-yl)ethyl)amino)pyrimidin-4-yl)oxazolidin-2-one (21.2 mg, white solid) in 15.9% yield. HRMS(B) m/z 395.1820, (M+H)+, RT=2.42 min

Workup

  1. temperatureat reflux for 1.5 hours
  2. customthe solvent was removed
  3. customto yield the crude product

Sources & evidence

ORD record
ord-570d6f198e06499fa4b3f4a5410e5e3c
Source dataset
uspto-grants-2015_02
Patent number
US08957068B2

Reaction notes

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