Sodium Nitrite → HCID 57761731, compound

HRID 2195049Notes

Reaction equation

HRID 2195049 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C:9]2[N:14]=[C:13]([N:15]3[CH2:19][CH2:18][CH2:17][CH:16]3[CH3:20])[N:12]=[C:11]([N:21]3[CH2:26][CH2:25][N:24]([C:27]4[N:32]=[CH:31][C:30](N)=[CH:29][C:28]=4[CH3:34])[CH2:23][CH2:22]3)[CH:10]=2)[CH:5]=[CH:6][C:7]=1[F:8].N([O-])=[O:36].[Na+]>OS(O)(=O)=O.O>[Cl:1][C:2]1[CH:3]=[C:4]([C:9]2[N:14]=[C:13]([N:15]3[CH2:19][CH2:18][CH2:17][CH:16]3[CH3:20])[N:12]=[C:11]([N:21]3[CH2:26][CH2:25][N:24]([C:27]4[N:32]=[CH:31][C:30]([OH:36])=[CH:29][C:28]=4[CH3:34])[CH2:23][CH2:22]3)[CH:10]=2)[CH:5]=[CH:6][C:7]=1[F:8]

Participants

5

Reactant 2

HCID 23668193Sodium NitriteHCID 57761684HCID 57761684, compound

Product 1

HCID 57761731HCID 57761731, compound

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 1118Sulfuric AcidSolvent

Conditions

Temperature
0 °C

Procedure

To a cooled solution (0° C.) of 6-{4-[6-(3-chloro-4-fluoro-phenyl)-2-(2-methyl-pyrrolidin-1-yl)-pyrimidin-4-yl]-piperazin-1-yl}-5-methyl-pyridin-3-ylamine (146 mg, 0.30 mmol) in 10% H2SO4, add a solution of NaNO2 (22 mg, 0.32 mmol) in 3 mL H2O and stir at 0° C. for 30 min. Warm up to room temperature and heat at 90° C. for 1 h. Cool to room temperature, adjust pH to 7, and extract with EtOAc. Wash with brine, dry the solution (Na2SO4), and concentrate under reduced pressure. Purify the residue by flash column chromatography eluting with EtOAc:hexanes (1:1) to afford the title compound.

Workup

  1. temperatureWarm up to room temperature
  2. temperatureheat at 90° C. for 1 h
  3. temperatureCool to room temperature
  4. extractionextract with EtOAc
  5. washWash with brine
  6. dry with materialdry the solution (Na2SO4)
  7. concentrationconcentrate under reduced pressure
  8. customPurify the residue by flash column chromatography
  9. washeluting with EtOAc:hexanes (1:1)

Sources & evidence

ORD record
ord-a3d3cebc75584db99107465bea5741f5
Source dataset
uspto-grants-2012_12
Patent number
US08334382B2

Reaction notes

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