Lithium Hydroxide → 3-(4-{4-[3-(4-Acetyl-piperazin-1-yl)-2-tert-butoxycarbonylamino-3-oxo-propyl]-phenoxy}-phenyl)-propionic acid

HRID 748991Notes

Reaction equation

HRID 748991 reaction equation
C[O:2][C:3](=[O:40])[CH2:4][CH2:5][C:6]1[CH:11]=[CH:10][C:9]([O:12][C:13]2[CH:18]=[CH:17][C:16]([CH2:19][CH:20]([NH:32][C:33]([O:35][C:36]([CH3:39])([CH3:38])[CH3:37])=[O:34])[C:21]([N:23]3[CH2:28][CH2:27][N:26]([C:29](=[O:31])[CH3:30])[CH2:25][CH2:24]3)=[O:22])=[CH:15][CH:14]=2)=[CH:8][CH:7]=1.[OH-].[Li+]>C1COCC1.O>[C:29]([N:26]1[CH2:27][CH2:28][N:23]([C:21](=[O:22])[CH:20]([NH:32][C:33]([O:35][C:36]([CH3:39])([CH3:38])[CH3:37])=[O:34])[CH2:19][C:16]2[CH:17]=[CH:18][C:13]([O:12][C:9]3[CH:10]=[CH:11][C:6]([CH2:5][CH2:4][C:3]([OH:40])=[O:2])=[CH:7][CH:8]=3)=[CH:14][CH:15]=2)[CH2:24][CH2:25]1)(=[O:31])[CH3:30]

Participants

5

Reactant 2

HCID 3939Lithium HydroxideHCID 597628063-(4-{4-[3-(4-Acetylpiperazin-1-yl)-2-tert-butoxycarbonylamino-3-oxo-propyl]-phenoxy}-phenyl)-propionic acid methyl ester

Product 1

HCID 597628123-(4-{4-[3-(4-Acetyl-piperazin-1-yl)-2-tert-butoxycarbonylamino-3-oxo-propyl]-phenoxy}-phenyl)-propionic acidYield 89.3%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

The amide compound 18 (2.3 g, 4.15 mmol) was dissolved in THF (20 mL) and diluted with water (20 mL). Lithium hydroxide (0.4 g, 17.0 mmol) was added and the reaction mixture was stirred at room temperature for about 2 h. The THF was evaporated and the resulting aqueous layer was acidified with 2.0 M HCl and extracted into EtOAc (2×30 mL). The organic layer was washed with water (1×40 mL) and brine (1×40 mL), dried and concentrated to yield the desired acid compound 19 (2.0 g, 89%). 1H NMR (400 MHz, DMSO-d6): 7.16 (overlapped d, J=8.4 Hz, 2H), 7.15 (overlapped d, J=8.8 Hz, 2H), 6.91 (d, J=8.0 Hz, 2H), 6.86 (d, J=8.0 Hz, 2H), 5.47 (dd, J=12.8 and 8.4 Hz, 1H), 4.81 (m, 1H), 4.81 (m, 1H), 3.32-3.57 (m, 6H), 2.92-3.00 (m, 6H), 2.66 (t, J=6.8 Hz, 2H), 2.08 (d, J=7.6 Hz, 3H), 1.43 (s, 9H).

Workup

  1. customThe THF was evaporated
  2. extractionextracted into EtOAc (2×30 mL)
  3. washThe organic layer was washed with water (1×40 mL) and brine (1×40 mL)
  4. customdried
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-b35a2dce62e34910b24a2da669b04209
Source dataset
uspto-grants-2008_07
Patent number
US07399786B2

Reaction notes

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