Triethylamine → 2-[(r)-2-(4-Benzyl-phenoxymethyl)-pyrrolidin-1-ylmethyl]-pyridine

HRID 749931Notes

Reaction equation

HRID 749931 reaction equation
[CH2:1]([C:8]1[CH:20]=[CH:19][C:11]([O:12][CH2:13][C@H:14]2[CH2:18][CH2:17][CH2:16][NH:15]2)=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Cl.[N:22]1[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=1[CH2:28]Cl.C(N(CC)CC)C>CN(C=O)C>[CH2:1]([C:8]1[CH:20]=[CH:19][C:11]([O:12][CH2:13][C@H:14]2[CH2:18][CH2:17][CH2:16][N:15]2[CH2:28][C:23]2[CH:24]=[CH:25][CH:26]=[CH:27][N:22]=2)=[CH:10][CH:9]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 23392Picolyl chloride hydrochlorideHCID 16222640(2r)-2-[(4-Benzylphenoxy)methyl]pyrrolidine

Product 1

HCID 160046872-[(r)-2-(4-Benzyl-phenoxymethyl)-pyrrolidin-1-ylmethyl]-pyridineYield 36%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of Example 1 (0.20 g, 0.66 mmol) in DMF (5 mL) was added 2-picolyl chloride hydrochloride (0.10 g, 0.61 mmol) and triethylamine (0.24 mL, 1.72 mmol). The subsequent mixture was stirred at ambient temperature overnight. The reaction mixture was concentrated under reduced pressure. The crude residue was extracted into ethyl acetate (25 mL) and washed with water (25 mL) followed by brine (25 mL). The combined organic layers were dried over anhydrous Na2SO4, filtered and concentrated in vacuo. The crude product was purified by flash chromatography using hexane/EtOAc (gradient system) to give the title compound (0.07 g, 36%); 1H NMR (400 MHz, CDCl3); δ 1.73-1.80 (m, 3H), 2.05 (m, 1H), 2.40 (m, 1H), 3.02-3.08 (m, 2H), 3.71 (d, J=13.6 Hz, 1H), 3.83 (m, 1H), 3.91 (s, 2H), 3.95 (m, 1H), 4.25 (d, J=13.6 Hz, 1H), 6.79 (d, J=8.8 Hz, 2H), 7.07 (d, J=8.8 Hz, 2H), 7.15-7.20 (m, 4H), 7.25-7.27 (m, 2H), 7.41 (m, 1H), 7.61 (m, 1H), 8.53 (m, 1H); MS (m/z) 359.2 (M+1); LC (100.0%).

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. extractionThe crude residue was extracted into ethyl acetate (25 mL)
  3. washwashed with water (25 mL)
  4. dry with materialThe combined organic layers were dried over anhydrous Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe crude product was purified by flash chromatography

Sources & evidence

ORD record
ord-7a300ac7cfe646f09b1892ce04db0f0f
Source dataset
uspto-grants-2008_07
Patent number
US07402684B2

Reaction notes

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