3-(Dimethylamino)pyrrolidine → HCID 178489786, compound

HRID 1092138Notes

Reaction equation

HRID 1092138 reaction equation
[CH3:1][N:2]([CH3:8])[CH:3]1[CH2:7][CH2:6][NH:5][CH2:4]1.Cl[C:10]1[N:11]=[CH:12][C:13]([C:16]([NH:18][C:19]2[NH:20][N:21]=[C:22]([CH2:24][CH2:25][C:26]3[CH:31]=[C:30]([O:32][CH3:33])[CH:29]=[C:28]([O:34][CH3:35])[CH:27]=3)[CH:23]=2)=[O:17])=[N:14][CH:15]=1>CS(C)=O.CO>[CH3:33][O:32][C:30]1[CH:31]=[C:26]([CH2:25][CH2:24][C:22]2[CH:23]=[C:19]([NH:18][C:16]([C:13]3[CH:12]=[N:11][C:10]([N:5]4[CH2:6][CH2:7][CH:3]([N:2]([CH3:8])[CH3:1])[CH2:4]4)=[CH:15][N:14]=3)=[O:17])[NH:20][N:21]=2)[CH:27]=[C:28]([O:34][CH3:35])[CH:29]=1

Participants

5

Reactant 2

HCID 27585193-(Dimethylamino)pyrrolidineHCID 178489782HCID 178489782, compound

Product 1

HCID 178489786HCID 178489786, compoundYield 80%

Reagents, catalysts & solvents 2

HCID 679Dimethyl SulfoxideSolventHCID 887MethanolSolvent

Procedure

N,N-dimethylpyrrolidin-3-amine (114 mg, 1.00 mmol) was added to 5-chloro-N-[5-[2-(3,5-dimethoxyphenyl)ethyl]-2H-pyrazol-3-yl]pyrazine-2-carboxamide (136 mg, 0.35 mmol) in anhydrous dimethylsulfoxide (1.75 ml) at 25° C. The resulting solution was stirred at room temperature for 20 mins. The reaction mixture was diluted with methanol (5.00 ml) and the crude product was purified by ion exchange chromatography, using a SCX column. The desired product was eluted from the column using 7M NH3/MeOH and fractions were evaporated to dryness to afford impure product as a brown oil. The crude product was purified by preparative HPLC, using decreasingly polar mixtures of water (containing 1% NH3) and MeCN as eluents. Fractions containing the desired compound were evaporated to dryness to afford the title compound (130 mg, 80%) as a white solid.

Workup

  1. customthe crude product was purified by ion exchange chromatography
  2. washThe desired product was eluted from the column
  3. customwere evaporated to dryness
  4. customto afford impure product as a brown oil
  5. customThe crude product was purified by preparative HPLC
  6. additionFractions containing the desired compound
  7. customwere evaporated to dryness

Sources & evidence

ORD record
ord-4cd83f12160e4f35b4e0d9d022e43947
Source dataset
uspto-grants-2012_03
Patent number
US08129391B2

Reaction notes

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