Acetic Acid → HCID 59587376, compound

HRID 715018Notes

Reaction equation

HRID 715018 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([F:8])[C:3]=1[C:9]1[O:10][C:11]([C:17]2[CH:22]=[CH:21][CH:20]=[C:19]([CH:23]=O)[CH:18]=2)=[C:12]([C:14]([NH2:16])=[O:15])[N:13]=1.[NH:25]1[CH2:30][CH2:29][O:28][CH2:27][CH2:26]1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(O)(=O)C>ClCCCl>[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([F:8])[C:3]=1[C:9]1[O:10][C:11]([C:17]2[CH:22]=[CH:21][CH:20]=[C:19]([CH2:23][N:25]3[CH2:30][CH2:29][O:28][CH2:27][CH2:26]3)[CH:18]=2)=[C:12]([C:14]([NH2:16])=[O:15])[N:13]=1

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 8083MorpholineHCID 5049666Sodium triacetoxyborohydrideHCID 59587462HCID 59587462, compound

Product 1

HCID 59587376HCID 59587376, compoundYield 37%

Reagents, catalysts & solvents 1

HCID 111,2-DichloroethaneSolvent

Procedure

To a solution of 2-(2,6-difluorophenyl)-5-(3-formylphenyl)oxazole-4-carboxamide (0.050 g, 0.152 mmol), morpholine (0.027 mL, 0.305 mmol) and sodium triacetoxyborohydride (0.014 g, 0.228 mmol) in 1,2-dichloroethane (6 mL) was added acetic acid (0.013 mL, 0.228 mmol) at room temperature. The resulting mixture was stirred at room temperature for 2 h and then quenched with saturated sodium bicarbonate. The aqueous layer was extracted with ethyl acetate and the combined organic extracts dried over MgSO4 and concentrated in vacuo to give a residue that was purified by preparative HPLC to afford 2-(2,6-difluorophenyl)-5-(3-(morpholinomethyl)phenyl)oxazole-4-carboxamide (0.022 g, 0.056 mmol, 37%) as a white solid. 1H NMR (DMSO) δ 2.39 (4H, br m), 3.54 (2H, br m), 3.59 (4H, t), 7.38-7.45 (3H, m), 7.50 (1H, t), 7.71-7.78 (3H, m), 8.13-8.17 (2H, m). LCMS (2) Rt: 2.62 min; m/z (ES+) 400.

Workup

  1. customquenched with saturated sodium bicarbonate
  2. extractionThe aqueous layer was extracted with ethyl acetate
  3. dry with materialthe combined organic extracts dried over MgSO4
  4. concentrationconcentrated in vacuo
  5. customto give a residue that
  6. customwas purified by preparative HPLC

Sources & evidence

ORD record
ord-9aecc4c90cfb4bf6a36567dd71792151
Source dataset
uspto-grants-2015_11
Patent number
US09187465B2

Reaction notes

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