Methanol → 5-iodo-2-methoxy-N-(6-methoxypyridin-3-yl)pyrimidin-4-amine

HRID 1811930노트

반응식

HRID 1811930 반응식
Cl[C:2]1[N:7]=[C:6]([NH:8][C:9]2[CH:10]=[N:11][C:12]([O:15][CH3:16])=[CH:13][CH:14]=2)[C:5]([I:17])=[CH:4][N:3]=1.[CH3:18][O-:19].[Na+].CO>O>[I:17][C:5]1[C:6]([NH:8][C:9]2[CH:10]=[N:11][C:12]([O:15][CH3:16])=[CH:13][CH:14]=2)=[N:7][C:2]([O:19][CH3:18])=[N:3][CH:4]=1

참가 물질

5

반응물 3

HCID 887MethanolHCID 10942334Sodium MethoxideHCID 866470532-chloro-5-iodo-N-(6-methoxypyridin-3-yl)pyrimidin-4-amine

생성물 1

HCID 666002025-iodo-2-methoxy-N-(6-methoxypyridin-3-yl)pyrimidin-4-amine수율 91%

시약·촉매·용매 1

HCID 962Water용매

반응 조건

온도
140 °C

실험 절차

A glass microwave reaction vessel was charged with 2-chloro-5-iodo-N-(6-methoxypyridin-3-yl)pyrimidin-4-amine (181 mg, 0.499 mmol), sodium methoxide (0.5 M solution in methanol, 0.043 mL, 0.749 mmol) and methanol (1 mL). The reaction mixture was stirred and heated in a Emrys Optimizer microwave reactor (Personal Chemistry, Biotage AB, Inc., Upssala, Sweden) at 140° C. for 15 min. The reaction mixture was diluted with water (10 mL) and extracted with EtOAc (2×20 mL). The organic extract was washed with saturated NaCl (5 mL) and dried over Na2SO4. The solution was filtered and concentrated in vacuo to give the crude material as a white solid. The crude product was purified by silica gel chromatography eluting with 50% EtOAc/hexanes to give 5-iodo-2-methoxy-N-(6-methoxypyridin-3-yl)pyrimidin-4-amine (162 mg, 0.452 mmol, 91% yield). 1H NMR (300 MHz, CDCl3) δ 8.35 (s, 1H); 8.26 (d, J=2.05 Hz, 1H); 7.83 (dd, J=8.84, 2.56 Hz, 1H); 6.87 (s, 1H); 6.78 (d, J=8.77 Hz, 1H); 3.94 (s, 3H); 3.89 (s, 3H). m/z (ESI, +ve ion) 359.0 (M+H)+.

후처리

  1. customA glass microwave reaction vessel
  2. extractionextracted with EtOAc (2×20 mL)
  3. extractionThe organic extract
  4. washwas washed with saturated NaCl (5 mL)
  5. dry with materialdried over Na2SO4
  6. filtrationThe solution was filtered
  7. concentrationconcentrated in vacuo
  8. customto give the crude material as a white solid
  9. customThe crude product was purified by silica gel chromatography
  10. washeluting with 50% EtOAc/hexanes

출처 및 근거

ORD 기록
ord-90b4e02dae304fdf9efbd03662d39959
출처 데이터셋
uspto-grants-2013_01
특허 번호
US08362241B2

반응 노트

불러오는 중…