Sulfur → 3-(7-(3-fluorophenyl)-3H-imidazo[4,5-c]pyridin-2-yl)-5-(pyridin-3-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazolo[3,4-b]pyridine

HRID 334507노트

반응식

HRID 334507 반응식
[N:1]1[CH:6]=[CH:5][CH:4]=[C:3]([C:7]2[CH:8]=[C:9]3[C:15]([CH:16]=O)=[N:14][N:13]([CH:18]4[CH2:23][CH2:22][CH2:21][CH2:20][O:19]4)[C:10]3=[N:11][CH:12]=2)[CH:2]=1.[F:24][C:25]1[CH:26]=[C:27]([C:31]2[C:32]([NH2:38])=[C:33]([NH2:37])[CH:34]=[N:35][CH:36]=2)[CH:28]=[CH:29][CH:30]=1.[S]>C(O)CCC>[F:24][C:25]1[CH:26]=[C:27]([C:31]2[C:32]3[N:38]=[C:16]([C:15]4[C:9]5[C:10](=[N:11][CH:12]=[C:7]([C:3]6[CH:2]=[N:1][CH:6]=[CH:5][CH:4]=6)[CH:8]=5)[N:13]([CH:18]5[CH2:23][CH2:22][CH2:21][CH2:20][O:19]5)[N:14]=4)[NH:37][C:33]=3[CH:34]=[N:35][CH:36]=2)[CH:28]=[CH:29][CH:30]=1

참가 물질

5

반응물 3

HCID 5362487SulfurHCID 463121005-(3-Fluorophenyl)pyridine-3,4-diamineHCID 86701076HCID 86701076, 화합물

생성물 1

HCID 1363442963-(7-(3-fluorophenyl)-3H-imidazo[4,5-c]pyridin-2-yl)-5-(pyridin-3-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazolo[3,4-b]pyridine

시약·촉매·용매 1

HCID 2631-Butanol용매

실험 절차

A solution of 5-(pyridin-3-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazolo[3,4-b]pyridine-3-carbaldehyde (CXXXI) (65 mg, 0.21 mmol), 5-(3-fluorophenyl)pyridine-3,4-diamine (LXXV) (45 mg, 0.22 mmol) and sulfur (7 mg, 0.22 mmol) in n-butanol (10 mL) was heated at reflux overnight. The solution was cooled to room temperature, filtered and the solvent was evaporated under reduced pressure to give crude 3-(7-(3-fluorophenyl)-3H-imidazo[4,5-c]pyridin-2-yl)-5-(pyridin-3-yl)-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazolo[3,4-b]pyridine (CXXXII). CXXXII was dissolved in dry DCM (5 mL) before adding triethylsilane (84 μL, 0.52 mmol) and TFA (2.5 mL). The reaction was stirred at room temperature for 2 h under argon. The solvent was evaporated under reduced pressure; the residue was taken up water (10 mL), and basified with 5N NH4OH. The precipitates were filtered, washed by cold water and dried under vacuum at room temperature. The crude product was suspended in DCM (10 mL), sonicated briefly and then heated to boiling for 5 min. The solution was cooled to room temperature and the solids were filtered, washed with DCM and dried under vacuum at room temperature to produce 3-(7-(3-fluorophenyl)-3H-imidazo[4,5-c]pyridin-2-yl)-5-(pyridin-3-yl)-1H-pyrazolo[3,4-b]pyridine (3) as a yellow solid (53 mg, 0.13 mmol, 62% yield). 1H NMR (DMSO-d6) δ ppm 7.25-7.34 (m, 1H), 7.54-7.65 (m, 2H), 8.11-8.21 (m, 1H), 8.23-8.30 (m, 1H), 8.37-8.50 (m, 1H), 8.63-8.70 (m, 1H), 8.70-8.80 (m, 1H), 9.02-9.09 (m, 2H), 9.09-9.15 (m, 1H), 13.94 (brs, 1H), 14.59 (s, 1H); ESIMS found for C23H14FN7 m/z 408.1 (M+H).

후처리

  1. temperatureat reflux overnight
  2. filtrationfiltered
  3. customthe solvent was evaporated under reduced pressure

출처 및 근거

ORD 기록
ord-136e2e8c84d2441aae7d11ba13526719
출처 데이터셋
uspto-grants-2014_11
특허 번호
US08883822B2

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