Water → HCID 57786012, compound

HRID 1628968Notes

Reaction equation

HRID 1628968 reaction equation
[Cl:1][C:2]1[C:10]2[N:9]=[C:8]3[N:11]([C:15]4[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:16]=4[Cl:22])[CH2:12][CH2:13][CH2:14][N:7]3[C:6]=2[C:5]([CH:23]([N:26](CC)[C:27](=O)[C:28](F)(F)F)[CH2:24][CH3:25])=[CH:4][CH:3]=1.[BH4-].[Na+].O>C(O)C>[Cl:1][C:2]1[C:10]2[N:9]=[C:8]3[N:11]([C:15]4[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:16]=4[Cl:22])[CH2:12][CH2:13][CH2:14][N:7]3[C:6]=2[C:5]([CH:23]([NH:26][CH2:27][CH3:28])[CH2:24][CH3:25])=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 962WaterHCID 4311764Sodium borohydrideHCID 57785832HCID 57785832, compound

Product 1

HCID 57786012HCID 57786012, compoundYield 33.1%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To a solution of N-{1-[9-chloro-1-(2,4-dichlorophenyl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazol-6-yl]propyl}-N-ethyl-2,2,2-trifluoroacetamide (131 mg, 0.245 mmol) in ethanol (5.0 mL) was added sodium tetrahydroborate (28 mg, 0.74 mmol) at room temperature. The mixture was stirred at room temperature for 18 hr. Water was added to the reaction mixture at room temperature and the mixture was extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous magnesium sulfate, and concentrated in vacuo. The residue was purified by flash chromatography on NH-silica gel eluting with a 30-80% ethyl acetate/n-hexane gradient mixture to give the title compound (35.4 mg, 0.081 mmol, 33%) as a colorless solid.

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by flash chromatography on NH-silica gel eluting with a 30-80% ethyl acetate/n-hexane gradient mixture

Sources & evidence

ORD record
ord-9913470aecf94040a370f4f8c8d41be8
Source dataset
uspto-grants-2014_07
Patent number
US08785460B2

Reaction notes

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