Dimethyl Sulfoxide → 5-[9-(Cyclopropylmethyl)-6-morpholin-4-yl-8-piperazin-1-yl-9H-purin-2-yl]pyrimidin-2-amine

HRID 1876515Notes

Reaction equation

HRID 1876515 reaction equation
CS(C)=O.Cl[C:6]1[N:7]([CH2:28][CH:29]2[CH2:31][CH2:30]2)[C:8]2[C:13]([N:14]=1)=[C:12]([N:15]1[CH2:20][CH2:19][O:18][CH2:17][CH2:16]1)[N:11]=[C:10]([C:21]1[CH:22]=[N:23][C:24]([NH2:27])=[N:25][CH:26]=1)[N:9]=2.[NH:32]1[CH2:37][CH2:36][NH:35][CH2:34][CH2:33]1>ClCCl.CO>[CH:29]1([CH2:28][N:7]2[C:6]([N:32]3[CH2:37][CH2:36][NH:35][CH2:34][CH2:33]3)=[N:14][C:13]3[C:8]2=[N:9][C:10]([C:21]2[CH:22]=[N:23][C:24]([NH2:27])=[N:25][CH:26]=2)=[N:11][C:12]=3[N:15]2[CH2:20][CH2:19][O:18][CH2:17][CH2:16]2)[CH2:31][CH2:30]1

Participants

5

Reactant 3

HCID 679Dimethyl SulfoxideHCID 4837PiperazineHCID 593335195-[8-chloro-9-(cyclopropylmethyl)-6-morpholin-4-yl-9H-purin-2-yl]pyrimidin-2-amine

Product 1

HCID 593335735-[9-(Cyclopropylmethyl)-6-morpholin-4-yl-8-piperazin-1-yl-9H-purin-2-yl]pyrimidin-2-amineYield 89%

Reagents, catalysts & solvents 1

HCID 21226129Dichloromethane methanolSolvent

Procedure

A dimethyl sulfoxide solution (0.8 ml) of 5-[8-chloro-9-(cyclopropylmethyl)-6-morpholin-4-yl-9H-purin-2-yl]pyrimidin-2-amine (78.3 mg, 0.20 mmol) and piperazine (67.6 mg, 0.78 mmol) was heated at 140° C. and stirred for 2.5 hours. The mixture was left standing to cool followed by the addition of dichloromethane-methanol (10:1) and the resulting mixture was washed with saturated aqueous sodium hydrogen carbonate solution. The organic layer was dried over anhydrous sodium sulfate, the mixture was filtrated, the filtrate was concentrated under reduced pressure, and the resulting residue was purified by preparative thin layer silica gel chromatography (dichloromethane:methanol=5:1) to give the title compound (76.5 mg, 89%) as a pale yellow solid.

Workup

  1. waitThe mixture was left
  2. temperatureto cool
  3. washthe resulting mixture was washed with saturated aqueous sodium hydrogen carbonate solution
  4. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  5. filtrationthe mixture was filtrated
  6. concentrationthe filtrate was concentrated under reduced pressure
  7. customthe resulting residue was purified by preparative thin layer silica gel chromatography (dichloromethane:methanol=5:1)

Sources & evidence

ORD record
ord-52e6e2bf607d4e41899bd25ee964466b
Source dataset
uspto-grants-2012_11
Patent number
US08309546B2

Reaction notes

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