Ammonium Chloride → 1-[5-(2,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl]-ethanol

HRID 38372Notes

Reaction equation

HRID 38372 reaction equation
[NH2:1][C:2]1[N:7]=[C:6]([NH2:8])[C:5]([O:9][C:10]2[C:11]([CH:21]([CH3:23])[CH3:22])=[CH:12][C:13]([O:19][CH3:20])=[C:14]([C:16](=[O:18])[CH3:17])[CH:15]=2)=[CH:4][N:3]=1.[BH4-].[Na+].[NH4+].[Cl-]>CO>[NH2:1][C:2]1[N:7]=[C:6]([NH2:8])[C:5]([O:9][C:10]2[C:11]([CH:21]([CH3:23])[CH3:22])=[CH:12][C:13]([O:19][CH3:20])=[C:14]([CH:16]([OH:18])[CH3:17])[CH:15]=2)=[CH:4][N:3]=1

Participants

5

Reactant 3

HCID 25517Ammonium ChlorideHCID 4311764Sodium borohydrideHCID 573300761-[5-(2,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl]-ethanone

Product 1

HCID 573291161-[5-(2,4-Diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl]-ethanolYield 61%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

To a solution of 1-[5-(2,4-diamino-pyrimidin-5-yloxy)-4-isopropyl-2-methoxy-phenyl]-ethanone (2.500 g, 8.3 mmol) in 100 ml MeOH was slowly added NaBH4 (1.566 g, 41.4 mmol) at 0° C. The solution was allowed to warm to rt. After 20 h, the saturated NH4Cl was added, the mixture was concentrated in vacuo and extracted with ethyl acetate. The combined organics were washed with brine, dried over Na2SO4, filtered and concentrated in vacuo. Purification via silica gel column chromatography (9:1 CH2Cl2/MeOH) afforded to 1-[5-(2,4-diamino-pyrimidine-5-yloxy)-4-isopropyl-2-methoxy-phenyl]-ethanol (1.613 g, 60%) as white foam; [MH]+=301.

Workup

  1. customat 0° C
  2. concentrationthe mixture was concentrated in vacuo
  3. extractionextracted with ethyl acetate
  4. washThe combined organics were washed with brine
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo
  8. customPurification via silica gel column chromatography (9:1 CH2Cl2/MeOH)

Sources & evidence

ORD record
ord-60b5992a87ee408ba35e5d39433bffda
Source dataset
uspto-grants-2013_09
Patent number
US08524725B2

Reaction notes

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