Hydrochloric Acid → 5-({3-[4-(Biphenyl-2-ylcarbamoyloxy)piperidin-1-yl]-propionyl}methylamino)pentanoic acid

HRID 1039831Notes

Reaction equation

HRID 1039831 reaction equation
COC(=O)CCCCN([C:10](=[O:35])[CH2:11][CH2:12][N:13]1[CH2:18][CH2:17][CH:16]([O:19][C:20](=[O:34])[NH:21][C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=2[C:28]2[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=2)[CH2:15][CH2:14]1)C.[Li+].[OH-:38].Cl.[C:40]([OH:44])([CH3:43])(C)C>O>[C:23]1([C:28]2[CH:29]=[CH:30][CH:31]=[CH:32][CH:33]=2)[CH:24]=[CH:25][CH:26]=[CH:27][C:22]=1[NH:21][C:20]([O:19][CH:16]1[CH2:15][CH2:14][N:13]([CH2:12][CH2:11][C:10]([CH2:14][NH:13][CH2:12][CH2:11][CH2:10][CH2:43][C:40]([OH:44])=[O:38])=[O:35])[CH2:18][CH2:17]1)=[O:34]

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 3939Lithium HydroxideHCID 6386tert-Butanol2×HCID 667700995-({3-[4-(Biphenyl-2-ylcarbamoyloxy)piperidin-1-yl]propionyl}-methylamino)pentanoic acid methyl ester

Product 1

HCID 667818015-({3-[4-(Biphenyl-2-ylcarbamoyloxy)piperidin-1-yl]-propionyl}methylamino)pentanoic acid

Reagents, catalysts & solvents 1

HCID 962WaterSolvent2×

Procedure

To a mixture of 5-({3-[4-(biphenyl-2-ylcarbamoyloxy)piperidin-1-yl]propionyl}-methylamino)pentanoic acid methyl ester (10.21 g, 20.60 mmol), tert-butyl alcohol (20 mL) and water (20 mL) was added a 1:1 mixture of LiOH:water (1.97 g, 41.2 mmol). The resulting mixture was stirred at room temperature for 4 h and then the pH of the mixture was adjusted to about pH 2 using aqueous hydrochloric acid (1 N). The aqueous layer was extracted with DCM (2ט80 mL) and the organic layers were combined, dried over sodium sulfate, filtered, and concentrated under reduced pressure to give the title compound (12.23 g, quantitative) as an off-white foamy solid (containing residual tert-butyl alcohol).

Workup

  1. additionwas added
  2. extractionThe aqueous layer was extracted with DCM (2ט80 mL)
  3. dry with materialdried over sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated under reduced pressure
  6. customto give

Sources & evidence

ORD record
ord-79912114dc6e4e87948d98d5f5c50b24
Source dataset
uspto-grants-2013_10
Patent number
US08551978B2

Reaction notes

Loading…