Hydrochloric Acid → 3-(5-{5-[6-[(1-methylethyl)oxy]-5-(methyloxy)-3-pyridinyl]-1,2,4-oxadiazol-3-yl}-1H-indol-2-yl)propanoic acid
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]=[C:20]4[C:24](=[CH:25][CH:26]=3)[NH:23][C:22]([CH2:27][CH2:28][C:29]([O:31]CC)=[O:30])=[CH:21]4)[N:14]=2)=[CH:9][C:8]=1[O:34][CH3:35])[CH3:5].Cl>C1COCC1.C(O)(C)C.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]=[C:20]4[C:24](=[CH:25][CH:26]=3)[NH:23][C:22]([CH2:27][CH2:28][C:29]([OH:31])=[O:30])=[CH:21]4)[N:14]=2)=[CH:9][C:8]=1[O:34][CH3:35])[CH3:3]Participants
Reactant 3
Product 1
Reagents, catalysts & solvents 3
Procedure
Sodium hydroxide (3 mg) was added to a solution of ethyl 3-(5-{5-[6-[(1-methylethyl)oxy]-5-(methyloxy)-3-pyridinyl]-1,2,4-oxadiazol-3-yl}-1H-indol-2-yl)propanoate (D118) (35 mg) in THF (5 mL), isopropanol (5 mL) and water (2.5 mL). The reaction mixture was stirred at room temperature overnight. The mixture was neutralized with 2 M HCl till pH ˜6.0. The crude product was purified by Mass Directed Auto Prep to afford 3-(5-{5-[6-[(1-methylethyl)oxy]-5-(methyloxy)-3-pyridinyl]-1,2,4-oxadiazol-3-yl}-1H-indol-2-yl)propanoic acid (E93) (5 mg). δH (DMSO-d6, 400 MHz): 1.35 (6H, d), 2.70 (2H, t), 2.99 (2H, t), 3.94 (3H, s), 5.42 (1H, m), 6.34 (1H, s), 7.45 (1H, d), 7.76 (1H, dd), 7.83 (1H, d), 8.23 (1H, s), 8.54 (1H, d), 11.34 (1H, s), 12.26 (1H, s); MS (ES): C22H22N4O5 requires 422; found 423.2 (M+H+).
Workup
- customThe crude product was purified by Mass Directed Auto Prep
Sources & evidence
- ORD record
- ord-0952c3aec29b41f797c1b71ae351270a
- Source dataset
- uspto-grants-2012_07
- Patent number
- US08217028B2
Reaction notes
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