Iodoethane → 2-(3-{3-[(2-Chloro-3-trifluoromethyl-benzyl)-2,2-diphenylethyl-amino]-propoxy}-phenyl)-2-ethyl-butyric acid methyl ester

HRID 229113Notes

Reaction equation

HRID 229113 reaction equation
[CH3:1][O:2][C:3](=[O:42])[CH2:4][C:5]1[CH:10]=[CH:9][CH:8]=[C:7]([O:11][CH2:12][CH2:13][CH2:14][N:15]([CH2:30][C:31]2[CH:36]=[CH:35][CH:34]=[C:33]([C:37]([F:40])([F:39])[F:38])[C:32]=2[Cl:41])[CH2:16][CH:17]([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=2)[CH:6]=1.[CH:43]([N-]C(C)C)(C)[CH3:44].[Li+].I[CH2:52][CH3:53]>C1COCC1>[CH3:1][O:2][C:3](=[O:42])[C:4]([C:5]1[CH:10]=[CH:9][CH:8]=[C:7]([O:11][CH2:12][CH2:13][CH2:14][N:15]([CH2:30][C:31]2[CH:36]=[CH:35][CH:34]=[C:33]([C:37]([F:38])([F:39])[F:40])[C:32]=2[Cl:41])[CH2:16][CH:17]([C:24]2[CH:25]=[CH:26][CH:27]=[CH:28][CH:29]=2)[C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=2)[CH:6]=1)([CH2:52][CH3:53])[CH2:43][CH3:44]

Participants

5

Reactant 3

HCID 6340IodoethaneHCID 2724682Lithium diisopropylamideHCID 10188816Methyl (3-{3-[[2-Chloro-3-(trifluoromethyl)benzyl](2,2-diphenylethyl)amino]propoxy}-phenyl)acetate

Product 1

HCID 577571032-(3-{3-[(2-Chloro-3-trifluoromethyl-benzyl)-2,2-diphenylethyl-amino]-propoxy}-phenyl)-2-ethyl-butyric acid methyl esterYield 50%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Conditions

Temperature
-78 °C

Procedure

To a solution of (3-{3-[(2-Chloro-3-trifluoromethyl-benzyl)-2,2-diphenylethyl-amino]-propoxy}-phenyl)-acetic acid methyl ester (70 mg, 0.12 mmol) in dry THF (50 mL) was added lithium diisopropylamide (1.7 mL, 1.2 mmol) dropwise with cooling to −78° C. After the reaction mixture was stirred at −78° C. for an additional 1 h, iodoethane (0.4 mL) was added. The reaction was warmed to RT over 4 h followed by quenching with saturated ammonium chloride (10 mL). Solvent was removed and the residue was partitioned between water and ethyl acetate. The combined organic layers were washed with brine, dried over sodium sulfate, and concentrated. The residue was purified by silica gel column chromatograph (EtOAc:Hexane/20:80) to give the title compound as an oil (37 mg, 50%). MS m/e 652.2 (M+H)+.

Workup

  1. temperatureThe reaction was warmed to RT over 4 h
  2. customby quenching with saturated ammonium chloride (10 mL)
  3. customSolvent was removed
  4. customthe residue was partitioned between water and ethyl acetate
  5. washThe combined organic layers were washed with brine
  6. dry with materialdried over sodium sulfate
  7. concentrationconcentrated
  8. customThe residue was purified by silica gel column chromatograph (EtOAc:Hexane/20:80)

Sources & evidence

ORD record
ord-37a7da44aee145abb17a538293705978
Source dataset
uspto-grants-2009_07
Patent number
US07560586B2

Reaction notes

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