Cesium carbonate → N-(5-chloro-2-nitrophenyl)-8-methyl-6-(pyridin-4-yl)-9-(tetrahydro-2H-pyran-4-yl)-9H-purin-2-amine

HRID 2074167

반응식

HRID 2074167 반응식
[CH3:1][C:2]1[N:3]([CH:18]2[CH2:23][CH2:22][O:21][CH2:20][CH2:19]2)[C:4]2[C:9]([N:10]=1)=[C:8]([C:11]1[CH:16]=[CH:15][N:14]=[CH:13][CH:12]=1)[N:7]=[C:6]([NH2:17])[N:5]=2.C(=O)([O-])[O-].[Cs+].[Cs+].C1C=CC(P(C2C(C3C(P(C4C=CC=CC=4)C4C=CC=CC=4)=CC=C4C=3C=CC=C4)=C3C(C=CC=C3)=CC=2)C2C=CC=CC=2)=CC=1.Br[C:77]1[CH:82]=[C:81]([Cl:83])[CH:80]=[CH:79][C:78]=1[N+:84]([O-:86])=[O:85]>C1(C)C=CC=CC=1.CC([O-])=O.CC([O-])=O.[Pd+2]>[Cl:83][C:81]1[CH:80]=[CH:79][C:78]([N+:84]([O-:86])=[O:85])=[C:77]([NH:17][C:6]2[N:5]=[C:4]3[C:9]([N:10]=[C:2]([CH3:1])[N:3]3[CH:18]3[CH2:23][CH2:22][O:21][CH2:20][CH2:19]3)=[C:8]([C:11]3[CH:16]=[CH:15][N:14]=[CH:13][CH:12]=3)[N:7]=2)[CH:82]=1

참가 물질

7

반응물 4

HCID 10796Cesium carbonateHCID 634876Binap, (A+-)-HCID 98561242-Bromo-4-chloro-1-nitrobenzeneHCID 576126668-methyl-6-(pyridin-4-yl)-9-(tetrahydro-2H-pyran-4-yl)-9H-purin-2-amine

생성물 1

HCID 57612643N-(5-chloro-2-nitrophenyl)-8-methyl-6-(pyridin-4-yl)-9-(tetrahydro-2H-pyran-4-yl)-9H-purin-2-amine수율 21.5%

시약·촉매·용매 2

HCID 167845palladium(II) acetate촉매HCID 1140Toluene용매

반응 조건

온도
170 °C

실험 절차

To an oven-dried vial was added 8-methyl-6-(pyridin-4-yl)-9-(tetrahydro-2H-pyran-4-yl)-9H-purin-2-amine (56 mg, 0.18 mmol, 1 equiv.) in anhydrous toluene (1 mL), then freshly grounded cesium carbonate (82 mg, 0.25 mmol, 1.4 equiv.) with stirring at room temperature under Ar. After 10 min, Pd(OAc)2 (13.5 mg, 0.02 mmol, 0.1 equiv.), racemic BINAP (17 mg, 0.03 mmol, 0.15 equiv.) and 1-bromo-5-chloro-2-nitrobenzene (WO 02/053545 A1) (55 mg, 0.23 mmol, 1.3 equiv.) were added as solids. The vial was purged with Ar for 3 min, then closed and heated in a microwave oven at 170° C. for 2 h. The reaction mixture was cooled to room temperature, diluted with ethyl acetate/methylene chloride, filtered through a Nylon 0.45 μm filter, and the filtrate was concentrated in vacuo. The resulting residue was purified using preparative TLC (silica gel, 7.5% methanol in methylene chloride) to give the desired product as a yellow solid (18 mg, 21% yield). 1H NMR (300 MHz, CDCl3+CD3OD) δ, ppm: 9.30 (s, 1H), 8.77 (br m, 2H), 8.64 (br m, 2H), 8.26 (d, J=8.9 Hz, H), 7.05 (d, J=7.9 Hz, 1H), 4.60-4.56 (m, 1H), 4.26-4.22 (m, 2H), 3.64 (app t, J=11.9 Hz, 2H), 2.94-2.90 (m, 2H), 2.76 (s, 3H), 1.91 (br d, J=11.2 Hz, 2H); MS (EI) m/z 466.3 (MH)+.

후처리

  1. customThe vial was purged with Ar for 3 min
  2. customclosed
  3. temperatureThe reaction mixture was cooled to room temperature
  4. additiondiluted with ethyl acetate/methylene chloride
  5. filtrationfiltered through a Nylon 0.45 μm
  6. filtrationfilter
  7. concentrationthe filtrate was concentrated in vacuo
  8. customThe resulting residue was purified

출처 및 근거

ORD 기록
ord-4bb3cc7240d5491c900f2f1020dd0db9
출처 데이터셋
uspto-grants-2011_04
특허 번호
US07919490B2

연결된 노트

불러오는 중…