Dimethylamine → 2-chloro-7-(1-ethyl-propyl)-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide

HRID 2189315Notes

Reaction equation

HRID 2189315 reaction equation
[Cl:1][C:2]1[N:3]=[CH:4][C:5]2[CH:10]=[C:9]([C:11]([OH:13])=O)[N:8]([CH:14]([CH2:17][CH3:18])[CH2:15][CH3:16])[C:6]=2[N:7]=1.F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)[N:37]([CH3:39])[CH3:38])C2C=CC=CC=2N=N1.C(N(CC)C(C)C)(C)C.CNC>CN(C=O)C.C1COCC1>[CH3:38][N:37]([CH3:39])[C:11]([C:9]1[N:8]([CH:14]([CH2:17][CH3:18])[CH2:15][CH3:16])[C:6]2[N:7]=[C:2]([Cl:1])[N:3]=[CH:4][C:5]=2[CH:10]=1)=[O:13]

Participants

7

Reactant 4

HCID 674DimethylamineHCID 81531DiisopropylethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 735546592-Chloro-7-(pentan-3-yl)-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid

Product 1

HCID 866373462-chloro-7-(1-ethyl-propyl)-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamideYield 72.4%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 2-chloro-7-(1-ethyl-propyl)-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid (80 mg, 0.30 mmol), BOP (159 mg, 0.36 mmol) and N,N-diisopropylethylamine (0.078 mL, 0.45 mmol) in DMF (3 mL) is added 0.164 mL of 2 N dimethylamine in THF solution at room temperature. The mixture is stirred at room temperature for 3 h, quenched with 1N NaOH aqueous solution, and extracted with EtOAc. The organic extracts are washed with brine, dried over Na2SO4, filtered, and concentrated under reduced pressure. The crude product is purified by column chromatography (SiO2, 5% MeOH in CH2Cl2) to give 64 mg of 2-chloro-7-(1-ethyl-propyl)-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide.

Workup

  1. customquenched with 1N NaOH aqueous solution
  2. extractionextracted with EtOAc
  3. washThe organic extracts are washed with brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. customThe crude product is purified by column chromatography (SiO2, 5% MeOH in CH2Cl2)

Sources & evidence

ORD record
ord-e5c17bd07e9844ec96dde42f1cab072d
Source dataset
uspto-grants-2012_12
Patent number
US08324225B2

Reaction notes

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