Phenethyl bromide → HCID 67143590, compound

HRID 574271Notes

Reaction equation

HRID 574271 reaction equation
[C:1]([O:5][C:6](=[O:40])[NH:7][C@H:8]([C:34]1[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=1)[CH2:9][N:10]1[C:15](=[O:16])[C:14]([N:17]2[CH2:22][CH2:21][NH:20][CH2:19][CH2:18]2)=[C:13]([CH3:23])[N:12]([CH2:24][C:25]2[C:30]([F:31])=[CH:29][CH:28]=[CH:27][C:26]=2[F:32])[C:11]1=[O:33])([CH3:4])([CH3:3])[CH3:2].C(=O)([O-])[O-].[K+].[K+].Br[CH2:48][CH2:49][C:50]1[CH:55]=[CH:54][CH:53]=[CH:52][CH:51]=1>CN(C=O)C.ClCCl>[C:1]([O:5][C:6](=[O:40])[NH:7][C@H:8]([C:34]1[CH:35]=[CH:36][CH:37]=[CH:38][CH:39]=1)[CH2:9][N:10]1[C:15](=[O:16])[C:14]([N:17]2[CH2:22][CH2:21][N:20]([CH2:48][CH2:49][C:50]3[CH:55]=[CH:54][CH:53]=[CH:52][CH:51]=3)[CH2:19][CH2:18]2)=[C:13]([CH3:23])[N:12]([CH2:24][C:25]2[C:26]([F:32])=[CH:27][CH:28]=[CH:29][C:30]=2[F:31])[C:11]1=[O:33])([CH3:2])([CH3:3])[CH3:4]

Participants

6

Reactant 3

HCID 7666Phenethyl bromideHCID 11430Potassium CarbonateHCID 67142914HCID 67142914, compound

Product 1

HCID 67143590HCID 67143590, compoundYield 70.2%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 6344DichloromethaneSolvent

Conditions

Temperature
80 °C

Procedure

To a solution of {(R)-2-[3-(2,6-difluoro-benzyl)-4-methyl-2,6-dioxo-5-piperazin-1-yl-3,6-dihydro-2H-pyrimidin-1-yl]-1-phenyl-ethyl}-carbamic acid tert-butyl ester (2-2) (30 mg, 0.054 mmol) in DMF (1 mL) were added potassium carbonate (15 mg, 0.108 mmol), KI (1.3 mg, 0.0081 mmol), and (2-bromo-ethyl)-benzene (11.0 mg, 0.059 mmol) in the order, followed by stirring at 80° C. for 4 hrs. The solution was diluted in dichloromethane and washed with distilled water. After concentration of the organic layer thus formed, the residue was purified using silica gel chromatography (eluent: hexane/ethyl acetate/dichloromethane, 1/1/1) and dried in a vacuum to afford 25 mg of the compound as a colorless oil (yield 70%). 1H NMR (300 MHz, CDCl3) δ 1.35 (9H, s), 2.22 (2H, m), 2.44 (3H, s), 2.49 (2H, m), 2.63 (2H, t), 2.82 (2H, t), 2.88 (2H, m), 3.62 (2H, m), 4.04 (1H, dd), 4.25 (1H, t), 5.01 (1H, m), 5.01-5.36 (2H, dd), 5.84 (1H, m), 6.89 (2H, t), 7.17-7.40 (11H, m)

Workup

  1. washwashed with distilled water
  2. customAfter concentration of the organic layer thus formed
  3. customthe residue was purified
  4. customdried in a vacuum

Sources & evidence

ORD record
ord-d650c99fed4047298bd437f86cfb7948
Source dataset
uspto-grants-2015_05
Patent number
US09034850B2

Reaction notes

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