Potassium Carbonate → N2-Butyl-9-(4-chlorobutyl)-8-(methyloxy)-9H-purine-2,6-diamine

HRID 562715노트

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HRID 562715 반응식
FC(F)(F)C(O)=O.[CH2:8]([NH:12][C:13]1[N:21]=[C:20]2[C:16]([N:17]=[C:18]([O:22][CH3:23])[NH:19]2)=[C:15]([NH2:24])[N:14]=1)[CH2:9][CH2:10][CH3:11].C(=O)([O-])[O-].[K+].[K+].Br[CH2:32][CH2:33][CH2:34][CH2:35][Cl:36]>CN(C=O)C>[CH2:8]([NH:12][C:13]1[N:21]=[C:20]2[C:16]([N:17]=[C:18]([O:22][CH3:23])[N:19]2[CH2:32][CH2:33][CH2:34][CH2:35][Cl:36])=[C:15]([NH2:24])[N:14]=1)[CH2:9][CH2:10][CH3:11]

참가 물질

5

반응물 3

HCID 11430Potassium CarbonateHCID 813641-Bromo-4-chlorobutaneHCID 178448879HCID 178448879, 화합물

생성물 1

HCID 59252596N2-Butyl-9-(4-chlorobutyl)-8-(methyloxy)-9H-purine-2,6-diamine수율 109.4%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

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온도
50 °C

실험 절차

N2-Butyl-8-(methyloxy)-9H-purine-2,6-diamine trifluoroacetate (5 g, 14.27 mmol) and potassium carbonate (4.93 g, 35.7 mmol) were suspended in DMF (40 ml) and heated to 50° C. under nitrogen for 30 mins. The mixture was cooled to room temperature, 1-bromo-4-chlorobutane (1.645 ml, 14.27 mmol) was added and stirring was continued at room temperature for 20 hours. The solvent was concentrated under vacuum and the residue was partitioned between DCM (100 ml) and water (100 ml). The layers were separated using a hydrophobic frit and the aqueous phase was re-extracted with DCM (100 ml). The combined organics extracts were concentrated in vacuo and the residue purified by chromatography using a FlashMaster apparatus (100 g silica cartridge) and using a DCM:methanol 0-25% gradient over 40 mins. The desired fractions were combined and concentrated under vacuum to give the impure title compound as a yellow oil (5.1 g).

후처리

  1. temperatureThe mixture was cooled to room temperature
  2. concentrationThe solvent was concentrated under vacuum
  3. customthe residue was partitioned between DCM (100 ml) and water (100 ml)
  4. customThe layers were separated
  5. extractionthe aqueous phase was re-extracted with DCM (100 ml)
  6. concentrationThe combined organics extracts were concentrated in vacuo
  7. customthe residue purified by chromatography
  8. waitmethanol 0-25% gradient over 40 mins
  9. concentrationconcentrated under vacuum

출처 및 근거

ORD 기록
ord-1f4b6033fb3747debeccfb8c0ed5a7c1
출처 데이터셋
uspto-grants-2011_11
특허 번호
US08067426B2

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