Sodium hydride → (S)-(3,5-bis-trifluoromethyl-benzyl)-[2-(cyclopentyl-methoxy-methyl)-5-trifluoromethyl-benzyl]-(2-methyl-2H-tetrazol-5-yl)-amine

HRID 2075036Notes

Reaction equation

HRID 2075036 reaction equation
[F:1][C:2]([F:22])([F:21])[C:3]1[CH:4]=[C:5]([CH:14]=[C:15]([C:17]([F:20])([F:19])[F:18])[CH:16]=1)[CH2:6][NH:7][C:8]1[N:9]=[N:10][N:11]([CH3:13])[N:12]=1.[H-].[Na+].Br[CH2:26][C:27]1[CH:32]=[C:31]([C:33]([F:36])([F:35])[F:34])[CH:30]=[CH:29][C:28]=1[C@H:37]([CH:40]1[CH2:44][CH2:43][CH2:42][CH2:41]1)[O:38][CH3:39]>CN(C=O)C>[F:18][C:17]([F:19])([F:20])[C:15]1[CH:14]=[C:5]([CH:4]=[C:3]([C:2]([F:1])([F:21])[F:22])[CH:16]=1)[CH2:6][N:7]([CH2:26][C:27]1[CH:32]=[C:31]([C:33]([F:34])([F:35])[F:36])[CH:30]=[CH:29][C:28]=1[C@H:37]([CH:40]1[CH2:44][CH2:43][CH2:42][CH2:41]1)[O:38][CH3:39])[C:8]1[N:9]=[N:10][N:11]([CH3:13])[N:12]=1

Participants

5

Reactant 3

HCID 24758Sodium hydrideHCID 230732215-[N-(3',5'-Bistrifluoromethylbenzyl)amino]-2-methyltetrazoleHCID 58968705(S)-2-(bromomethyl)-1-(cyclopentyl(methoxy)methyl)-4-(trifluoro-methyl)benzene

Product 1

HCID 58968629(S)-(3,5-bis-trifluoromethyl-benzyl)-[2-(cyclopentyl-methoxy-methyl)-5-trifluoromethyl-benzyl]-(2-methyl-2H-tetrazol-5-yl)-amineYield 19.1%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent2×

Procedure

To a solution of N-(3,5-bis(trifluoromethyl)benzyl)-2-methyl-2H-tetrazol-5-amine (25.7 mg, 0.078 mmol) in DMF (0.1 mL) at room temperature was added sodium hydride (6 mg, 0.2 mmol). The mixture was stirred at room temperature for 1 hour. 2-(Bromomethyl)-1-(cyclopentyl(methoxy)methyl)-4-(trifluoromethyl)benzene (Enantiomer 1 from STEP D, 23.1 mg, 0.066 mmol) in DMF (0.2 mL) was added. The mixture was stirred at room temperature for 2 days. Solvent was removed in vacuo. The residue was purified by chromatography over 12+S Biotage silica column (eluted with 0-25% ethyl acetate in heptane) to afford the title compound (7.5 mg, 19%). 1H NMR (400 MHz, CDCl3) δ ppm 1.04-1.16 (m, 1H) 1.22-1.33 (m, 1H) 1.38-1.50 (m, 3H) 1.51-1.63 (m, 2H) 1.65-1.76 (m, 1H) 2.02-2.14 (m, 1H) 3.07 (s, 3H) 4.19 (d, J=7.88 Hz, 1H) 4.20-4.23 (m, 3H) 4.72 (d, J=2.49 Hz, 2H) 4.76 (d, J=16.18 Hz, 1H) 4.90 (d, J=16.18 Hz, 1H) 7.35 (s, 1H) 7.51-7.58 (m, 2H) 7.66 (s, 2H) 7.78 (s, 1H). MS (ES+) Calc: 595.2, Found: 596.5 (M+1) To a solution of N-(3,5-bis(trifluoromethyl)benzyl)-2-methyl-2H-tetrazol-5-amine (27.2 mg, 0.084 mmol) in DMF (0.1 mL) at room temperature was added sodium hydride (6 mg, 0.2 mmol). The mixture was stirred at room temperature for 1 hour. 2-(Bromomethyl)-1-(cyclopentyl(methoxy)methyl)-4-(trifluoromethyl)benzene (Enantiomer 2 from STEP D, 24.5 mg, 0.070 mmol) in DMF (0.2 mL) was added. The mixture was stirred at room temperature overnight. Solvent was removed in vacuo. The residue was purified by chromatography over 12+S Biotage silica column (eluted with 0-30% ethyl acetate in heptane) to afford the title compound (18.6 mg, 45%). The residue was purified by chromatography over 12+S Biotage silica column (eluted with 0-30% ethyl acetate in hexanes) to afford a colorless oil (18.6 mg, 45%). 1H NMR (400 MHz, CDCl3) δ ppm 1.04-1.15 (m, 1H) 1.23-1.33 (m, 1H) 1.38-1.63 (m, 5H) 1.66-1.75 (m, 1H) 2.03-2.11 (m, 1H) 3.07 (s, 3H) 4.19 (d, J=7.88 Hz 1H) 4.21 (s, 3H) 4.72 (d, J=2.90 Hz, 2H) 4.76 (d, J=16.18 Hz, 1H) 4.90 (d, J=16.18 Hz, 1H) 7.35 (s, 1H) 7.51-7.58 (m, 2H) 7.66 (s, 2H) 7.77 (s, 1H). MS (ES+) Calc: 595.2, Found: 596.5 (M+1).

Workup

  1. stirringThe mixture was stirred at room temperature for 2 days
  2. customSolvent was removed in vacuo
  3. customThe residue was purified by chromatography over 12+S Biotage silica column (eluted with 0-25% ethyl acetate in heptane)

Sources & evidence

ORD record
ord-7a249e50d1e84f17bd7e0a61a1b7c3e6
Source dataset
uspto-grants-2011_04
Patent number
US07919506B2

Reaction notes

Loading…