Dimethylamine → 2-Chloro-7-cyclopentyl-N,N-dimethyl-7H-pyrrolo[2,3-d]pyrimidine-6-carboxamide

HRID 1483088Notes

Reaction equation

HRID 1483088 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]3[CH2:18][CH2:17][CH2:16][CH2:15]3)[C:6]=2[N:7]=1.[CH3:19][N:20](C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)[CH3:21].F[P-](F)(F)(F)(F)F.C(N(C(C)C)CC)(C)C.CNC.C(O)C>CN(C)C=O.C(OCC)(=O)C>[CH3:19][N:20]([CH3:21])[C:11]([C:9]1[N:8]([CH:14]2[CH2:18][CH2:17][CH2:16][CH2:15]2)[C:6]2[N:7]=[C:2]([Cl:1])[N:3]=[CH:4][C:5]=2[CH:10]=1)=[O:13]

Participants

8

Reactant 5

HCID 674DimethylamineHCID 702EthanolHCID 81531DiisopropylethylamineHCID 2733084Methanaminium, N-((1H-benzotriazol-1-yloxy)(dimethylamino)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 583154272-Chloro-7-cyclopentyl-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid

Product 1

HCID 583154322-Chloro-7-cyclopentyl-N,N-dimethyl-7H-pyrrolo[2,3-d]pyrimidine-6-carboxamideYield 79%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

2-Chloro-7-cyclopentyl-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid (1.07 g, 4.03 mmol), HBTU (1.53 g, 4.03 mmol) and diisopropylethylamine (2 mL, 12.1 mmol) are dissolves in dimethylformamide (20 mL). 2 M solution of dimethylamine in ethanol (2.4 mL, 4.8 mmol) is added and the mixture is stirred for 30 minutes to achieve complete conversion. The reaction mixture is diluted with ethyl acetate and washed with saturated aqueous sodium hydrogen carbonate, water, then brine. The organic phase is dried (Na2SO4), filtered and concentrated. Purification by chromatography on silicagel (ethyl acetate:heptane) provides 2-Chloro-7-cyclopentyl-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylic acid dimethylamide (927 mg, 79% yield) MS (ESI) m/z 293.1 (M+H)+

Workup

  1. washwashed with saturated aqueous sodium hydrogen carbonate, water
  2. dry with materialThe organic phase is dried (Na2SO4)
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customPurification by chromatography on silicagel (ethyl acetate:heptane)

Sources & evidence

ORD record
ord-16f58425fb6446a7b9ea529d8ae6de14
Source dataset
uspto-grants-2016_08
Patent number
US09416136B2

Reaction notes

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