Hydrochloric Acid → HCID 44547909, compound

HRID 1512885Notes

Reaction equation

HRID 1512885 reaction equation
[OH-].[Na+].[Cl:3][C:4]1[CH:5]=[C:6]([C:14]2[O:18][N:17]=[C:16]([C:19]3[CH:20]=[CH:21][CH:22]=[C:23]4[C:27]=3[N:26]([CH2:28][CH3:29])[CH:25]=[C:24]4[CH2:30][CH2:31][C:32]([O:34]CC)=[O:33])[N:15]=2)[CH:7]=[CH:8][C:9]=1[O:10][CH:11]([CH3:13])[CH3:12].Cl>C1COCC1.C(O)(C)C.O>[Cl:3][C:4]1[CH:5]=[C:6]([C:14]2[O:18][N:17]=[C:16]([C:19]3[CH:20]=[CH:21][CH:22]=[C:23]4[C:27]=3[N:26]([CH2:28][CH3:29])[CH:25]=[C:24]4[CH2:30][CH2:31][C:32]([OH:34])=[O:33])[N:15]=2)[CH:7]=[CH:8][C:9]=1[O:10][CH:11]([CH3:13])[CH3:12]

Participants

7

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 59146149HCID 59146149, compound

Product 1

HCID 44547909HCID 44547909, compoundYield 56.5%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 3776IsopropanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

Sodium hydroxide (66 mg) was added to a solution of ethyl 3-[7-(5-{3-chloro-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-1-ethyl-1H-indol-3-yl]propanoate (D120) (79 mg) in THF (5 mL), isopropanol (4 mL) and water (2 mL). The reaction mixture was stirred at room temperature overnight. The mixture was neutralized with 2 M HCl till pH ˜6.0. The solvent was concentrated, and the residue was dissolved in water. The precipitated solid was purified by Mass Directed Auto Prep to afford 3-[7-(5-{3-chloro-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-1-ethyl-1H-indol-3-yl]propanoic acid (E26) (42 mg). δH (DMSO-d6, 400 MHz): 1.04 (3H, t), 1.37 (6H, d), 2.62 (2H, t), 2.98 (2H, t), 4.14 (2H, q), 4.89 (1H, m), 7.18 (1H, t), 7.27 (1H, s), 7.45 (2H, t), 7.81 (1H, dd), 8.13 (1H, dd), 8.20 (1H, d), 12.07 (1H, s); MS (ES): C24H24ClN3O4 requires 453; found 454.2 (M+H+).

Workup

  1. concentrationThe solvent was concentrated
  2. dissolutionthe residue was dissolved in water
  3. customThe precipitated solid was purified by Mass Directed Auto Prep

Sources & evidence

ORD record
ord-f6b59330127a4d8db10c2571db37c7aa
Source dataset
uspto-grants-2012_07
Patent number
US08217028B2

Reaction notes

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