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

HRID 1039847Notes

Reaction equation

HRID 1039847 reaction equation
C[O:2][C:3](=[O:38])[C:4]1[CH:9]=[CH:8][CH:7]=[C:6]([NH:10][CH2:11][C:12](=[O:37])[CH2:13][CH2:14][N:15]2[CH2:20][CH2:19][CH:18]([O:21][C:22](=[O:36])[NH:23][C:24]3[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=3[C:30]3[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=3)[CH2:17][CH2:16]2)[CH:5]=1.[OH-].[Li+].C(#N)C.Cl>O>[C:25]1([C:30]2[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=2)[CH:26]=[CH:27][CH:28]=[CH:29][C:24]=1[NH:23][C:22]([O:21][CH:18]1[CH2:17][CH2:16][N:15]([CH2:14][CH2:13][C:12]([CH2:11][NH:10][C:6]2[CH:5]=[C:4]([CH:9]=[CH:8][CH:7]=2)[C:3]([OH:38])=[O:2])=[O:37])[CH2:20][CH2:19]1)=[O:36]

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 3939Lithium HydroxideHCID 6342AcetonitrileHCID 667815453-({3-[4-(Biphenyl-2-ylcarbamoyloxy)piperidin-1-yl]propionyl}methylamino)benzoic Acid Methyl Ester

Product 1

HCID 667823883-({3-[4-(Biphenyl-2-ylcarbamoyloxy)piperidin-1-yl]propionyl}methylamino)benzoic AcidYield 87.6%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A solution of 3-({3-[4-(biphenyl-2-ylcarbamoyloxy)piperidin-1-yl]-propionyl}methylamino)benzoic acid methyl ester (6.80 g, 13.2 mmol) and lithium hydroxide (1.58 g, 65.9 mmol) in a 1:1 mixture of acetonitrile:water (25.0 mL) was stirred at room temperature overnight. The pH of the reaction mixture was adjusted to pH 5 with aqueous hydrochloric acid (1M) and this mixture was extracted with DCM (20 mL). The organic layer was dried over sodium sulfate, filtered and concentrated under reduced pressure. The residue was purified by silica gel flash chromatography (0-10% MeOH in DCM) to give the title compound (5.80 g, 87% yield) as an off-white powder.

Workup

  1. extractionthis mixture was extracted with DCM (20 mL)
  2. dry with materialThe organic layer was dried over sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by silica gel flash chromatography (0-10% MeOH in DCM)

Sources & evidence

ORD record
ord-e91982e9ba714843a7767d95baf39ff6
Source dataset
uspto-grants-2013_10
Patent number
US08551978B2

Reaction notes

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