Sodium Hydroxide → 3-(7-{5-[6-[(1-methylethyl)oxy]-5-(trifluoromethyl)-3-pyridinyl]-1,2,4-oxadiazol-3-yl}-1H-indol-3-yl)propanoic acid

HRID 1512875Notes

Reaction equation

HRID 1512875 reaction equation
[OH-].[Na+].[CH3:3][CH:4]([O:6][C:7]1[N:12]=[CH:11][C:10]([C:13]2[O:17][N:16]=[C:15]([C:18]3[CH:19]=[CH:20][CH:21]=[C:22]4[C:26]=3[NH:25][CH:24]=[C:23]4[CH2:27][CH2:28][C:29]([O:31]CC)=[O:30])[N:14]=2)=[CH:9][C:8]=1[C:34]([F:37])([F:36])[F:35])[CH3:5]>C(O)(C)C.C1COCC1.O>[CH3:5][CH:4]([O:6][C:7]1[N:12]=[CH:11][C:10]([C:13]2[O:17][N:16]=[C:15]([C:18]3[CH:19]=[CH:20][CH:21]=[C:22]4[C:26]=3[NH:25][CH:24]=[C:23]4[CH2:27][CH2:28][C:29]([OH:31])=[O:30])[N:14]=2)=[CH:9][C:8]=1[C:34]([F:36])([F:37])[F:35])[CH3:3]

Participants

6

Reactant 2

HCID 14798Sodium HydroxideHCID 59146041ethyl 3-(7-{5-[6-[(1-methylethyl)oxy]-5-(trifluoromethyl)-3-pyridinyl]-1,2,4-oxadiazol-3-yl}-1H-indol-3-yl)propanoate

Product 1

HCID 445476053-(7-{5-[6-[(1-methylethyl)oxy]-5-(trifluoromethyl)-3-pyridinyl]-1,2,4-oxadiazol-3-yl}-1H-indol-3-yl)propanoic acidYield 51.1%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 3776IsopropanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

Sodium hydroxide (50 mg) was added to a solution of ethyl 3-(7-{5-[6-[(1-methylethyl)oxy]-5-(trifluoromethyl)-3-pyridinyl]-1,2,4-oxadiazol-3-yl}-1H-indol-3-yl)propanoate (D37) (83 mg) in isopropanol (5 mL), THF (3 mL), water (1.5 mL). The reaction mixture was stirred at room temperature overnight. The organic solvents were removed. 2 M HCl was used to adjust the pH value to around 6.0. The crude product was purified by Mass Directed Auto Prep to afford 3-(7-{5-[6-[(1-methylethyl)oxy]-5-(trifluoromethyl)-3-pyridinyl]-1,2,4-oxadiazol-3-yl}-1H-indol-3-yl)propanoic acid (E15) (40 mg). δH (DMSO-d6, 400 MHz): 1.41 (6H, d), 2.64 (2H, t), 3.01 (2H, t), 5.56 (1H, m), 7.22 (1H, t), 7.29 (1H, d), 7.84 (1H, d), 7.96 (1H, dd), 8.79 (1H, d), 9.36 (1H, d), 10.86 (1H, s), 12.07 (1H, br s); MS (ES): C22H19F3N4O4 requires 460; found 461.2 (M+H+).

Workup

  1. customThe organic solvents were removed
  2. customThe crude product was purified by Mass Directed Auto Prep

Sources & evidence

ORD record
ord-a7545a3d05124a36929de63e0a6ce5b0
Source dataset
uspto-grants-2012_07
Patent number
US08217028B2

Reaction notes

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