Hydrochloric Acid → (+/-)-3-(6-(1-(2,6-Dimethyl-4'-(trifluoromethyl)biphenyl-4-ylamino)-3-methylbutyl)nicotinamido)propanoic acid

HRID 2406940Notes

Reaction equation

HRID 2406940 reaction equation
[CH3:1][C:2]1[CH:7]=[C:6]([NH:8][CH:9]([C:14]2[CH:28]=[CH:27][C:17]([C:18]([NH:20][CH2:21][CH2:22][C:23]([O:25]C)=[O:24])=[O:19])=[CH:16][N:15]=2)[CH2:10][CH:11]([CH3:13])[CH3:12])[CH:5]=[C:4]([CH3:29])[C:3]=1[C:30]1[CH:35]=[CH:34][C:33]([C:36]([F:39])([F:38])[F:37])=[CH:32][CH:31]=1.[Li+].[OH-].Cl>O.O1CCCC1>[CH3:1][C:2]1[CH:7]=[C:6]([NH:8][CH:9]([C:14]2[CH:28]=[CH:27][C:17]([C:18]([NH:20][CH2:21][CH2:22][C:23]([OH:25])=[O:24])=[O:19])=[CH:16][N:15]=2)[CH2:10][CH:11]([CH3:13])[CH3:12])[CH:5]=[C:4]([CH3:29])[C:3]=1[C:30]1[CH:35]=[CH:34][C:33]([C:36]([F:39])([F:38])[F:37])=[CH:32][CH:31]=1

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 3939Lithium HydroxideHCID 67981001Methyl 3-(6-(1-(2,6-dimethyl-4'-(trifluoromethyl)biphenyl-4-ylamino)-3-methylbutyl)nicotinamido)propanoate

Product 1

HCID 57389840(+/-)-3-(6-(1-(2,6-Dimethyl-4'-(trifluoromethyl)biphenyl-4-ylamino)-3-methylbutyl)nicotinamido)propanoic acidYield 13%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

Methyl 3-(6-(1-(2,6-dimethyl-4′-(trifluoromethyl) biphenyl-4-yl amino)-3-methylbutyl)nicotinamido)propanoate (400 mg, 0.74 mmol) was dissolved in H2O (3 mL) and tetrahydrofuran (3 mL). Then 1N LiOH (93.0 mg, 2.2 mmol) was added. The mixture was stirred at ambient temperature for 5 hours. The mixture was neutralized with 1N HCl and extracted with ethyl acetate. The organic layer was dried over sodium sulfate, filtered and concentrated. Purification by HPLC (column: Boston Analytics Symmetrix ODS-H 150×30 mm, 5 μm; modifier: formic acid 0.225%; gradient: 10 to 80% MeCN in water) gave (+/−)-3-(6-(1-(2,6-dimethyl-4′-(trifluoromethyl)biphenyl-4-ylamino)-3-methylbutyl)nicotinamido)propanoic acid (50.7 mg, 13%) as a yellow solid. 1H NMR (400 MHz, CD3CN, δ): 8.85 (s, 1H), 8.02 (m, 1H), 7.64 (d, 2H), 7.46 (d, 1H), 7.22 (d, 3H), 6.32 (s, 2H), 4.59 (m, 1H), 3.54 (m, 2H), 2.55 (m, 2H), 1.93 (m, 6H), 1.78 (s, 2H), 1.72 (m, 2H), 1.60 (m, 1H), 0.96 (d, 3H), 0.91 (d, 3H). MS (M+1): 528.2.

Workup

  1. extractionextracted with ethyl acetate
  2. dry with materialThe organic layer was dried over sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customPurification by HPLC (column: Boston Analytics Symmetrix ODS-H 150×30 mm, 5 μm; modifier: formic acid 0.225%; gradient: 10 to 80% MeCN in water)

Sources & evidence

ORD record
ord-fe66cf4a6cad41c5a36c58b430b578f4
Source dataset
uspto-grants-2014_08
Patent number
US08809342B2

Reaction notes

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