Piperazine → 2-Furan-2-yl-5-piperazin-1-yl-[1,2,4]triazolo[1,5-a][1,3,5]triazin-7-ylamine

HRID 1181285노트

반응식

HRID 1181285 반응식
[O:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[C:6]1[N:19]=[C:9]2[N:10]=[C:11](S(C)(=O)=O)[N:12]=[C:13]([NH2:14])[N:8]2[N:7]=1.[NH:20]1[CH2:25][CH2:24][NH:23][CH2:22][CH2:21]1>CC#N>[O:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[C:6]1[N:19]=[C:9]2[N:10]=[C:11]([N:20]3[CH2:25][CH2:24][NH:23][CH2:22][CH2:21]3)[N:12]=[C:13]([NH2:14])[N:8]2[N:7]=1

참가 물질

4

반응물 2

HCID 4837PiperazineHCID 99708822-(Furan-2-yl)-5-(methylsulfonyl)-[1,2,4]triazolo[1,5-a][1,3,5]triazin-7-amine

생성물 1

HCID 114490312-Furan-2-yl-5-piperazin-1-yl-[1,2,4]triazolo[1,5-a][1,3,5]triazin-7-ylamine

시약·촉매·용매 1

HCID 6342Acetonitrile용매

실험 절차

18 mmol of 2-furan-2-yl-5-methanesulfonyl-[1,2,4]triazolo[1,5-a][1,3,5]triazin-7-ylamine (prepared as described in Caulkett et al., J. Chem. Soc. Perkin Trans I. 801-808 (1995)) was suspended in 50 mL of CH3CN along with 5 eq. of piperazine. The reaction mixture was stirred under reflux for 2 hours. It was then cooled to room temperature and concentrated under reduced pressure. The residue was taken up in CH2Cl2 and washed with H2O, brine, dried with Na2SO4, and concentrated under reduced pressure. The resulting crude product was purified by chromatography (95% CH2Cl2, 4% MeOH, 1% Et3N) to afford 2-furan-2-yl-5-piperazin-1-yl-[1,2,4]triazolo[1,5-a][1,3,5]triazin-7-ylamine. 1H NMR (DMSO-d6) δ 8.2 (br s, 2H), 7.85 (d, J=1.0 Hz, 1H), 7.07 (d, J=3.6 Hz, 1H), 6.68 (dd, J=3.6 Hz. 1.0 Hz, 1H), 3.20-2.75 (m, 8H) ppm. MS: m/z=287 [M+H]+.

후처리

  1. temperatureunder reflux for 2 hours
  2. concentrationconcentrated under reduced pressure
  3. washwashed with H2O, brine
  4. dry with materialdried with Na2SO4
  5. concentrationconcentrated under reduced pressure
  6. customThe resulting crude product was purified by chromatography (95% CH2Cl2, 4% MeOH, 1% Et3N)

출처 및 근거

ORD 기록
ord-428d8a0221d24eeba187964f4285b08a
출처 데이터셋
uspto-grants-2007_10
특허 번호
US07285550B2

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