3-Fluoro-5-(trifluoromethyl)benzaldehyde → 2-{5-[1-(3-Fluoro-5-trifluoromethyl-benzyl)-piperidin-4-yl]-4'-trifluoromethyl-biphenyl-3-yl}-4-methyl-pentanoic acid ethyl ester

HRID 889751Notes

Reaction equation

HRID 889751 reaction equation
[CH2:1]([O:3][C:4](=[O:32])[CH:5]([C:10]1[CH:11]=[C:12]([C:22]2[CH:27]=[CH:26][C:25]([C:28]([F:31])([F:30])[F:29])=[CH:24][CH:23]=2)[CH:13]=[C:14]([CH:16]2[CH2:21][CH2:20][NH:19][CH2:18][CH2:17]2)[CH:15]=1)[CH2:6][CH:7]([CH3:9])[CH3:8])[CH3:2].[F:33][C:34]1[CH:35]=[C:36]([CH:39]=[C:40]([C:42]([F:45])([F:44])[F:43])[CH:41]=1)[CH:37]=O.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClCCCl>[CH2:1]([O:3][C:4](=[O:32])[CH:5]([C:10]1[CH:11]=[C:12]([C:22]2[CH:27]=[CH:26][C:25]([C:28]([F:29])([F:30])[F:31])=[CH:24][CH:23]=2)[CH:13]=[C:14]([CH:16]2[CH2:17][CH2:18][N:19]([CH2:37][C:36]3[CH:39]=[C:40]([C:42]([F:43])([F:44])[F:45])[CH:41]=[C:34]([F:33])[CH:35]=3)[CH2:20][CH2:21]2)[CH:15]=1)[CH2:6][CH:7]([CH3:9])[CH3:8])[CH3:2]

Participants

5

Reactant 3

HCID 6056863-Fluoro-5-(trifluoromethyl)benzaldehydeHCID 5049666Sodium triacetoxyborohydrideHCID 576660434-Methyl-2-(5-piperidin-4-yl-4'-trifluoromethyl-biphenyl-3-yl)-pentanoic acid ethyl ester

Product 1

HCID 576660322-{5-[1-(3-Fluoro-5-trifluoromethyl-benzyl)-piperidin-4-yl]-4'-trifluoromethyl-biphenyl-3-yl}-4-methyl-pentanoic acid ethyl ester

Reagents, catalysts & solvents 1

HCID 111,2-DichloroethaneSolvent

Procedure

To a solution of a mixture of 4-methyl-2-{5-piperidin-4-yl-4′-trifluoromethyl-biphenyl-3-yl)-pentanoic acid ethyl ester and methyl ester (68b) (40 mg, 0.09 mmol) in 1,2-dichloroethane (2.0 mL) was added 3-fluoro-5-trifluoromethyl-benzaldehyde (19 mg, 0.10 mmol) and sodiumtriacetoxyborohydride (25 mg, 0.12 mmol). The mixture was stirred for 14 h at room temperature. The reaction was quenched with water and extracted with dichloromethane. The organic was washed with saturated aqueous NaHCO3 solution and brine. The organic fraction was dried (MgSO4) and concentrated in vacuo. The crude mixture contained 2-{5-[1-(3-fluoro-5-trifluoromethyl-benzyl)-piperidin-4-yl]-4′-trifluoromethyl-biphenyl-3-yl}-4-methyl-pentanoic acid ethyl ester and methyl ester. Calcd for C33H34F7NO2 (M+H) 610.62, Found 610.30 (methyl ester) and Calcd for C34H36F7NO2 (M+H) 624.64, Found 624.24 (ethyl ester).

Workup

  1. customThe reaction was quenched with water
  2. extractionextracted with dichloromethane
  3. washThe organic was washed with saturated aqueous NaHCO3 solution and brine
  4. dry with materialThe organic fraction was dried (MgSO4)
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-ac3f6c136b1640209a7db71dd526f577
Source dataset
uspto-grants-2012_08
Patent number
US08252935B2

Reaction notes

Loading…