Ethanol → 4-methoxy-6-(8-methyl-2,8-diazaspiro[3.4]octan-2-yl)-N'-(4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-yl)benzene-1,3-diamine

HRID 1842814노트

반응식

HRID 1842814 반응식
[CH3:1][O:2][C:3]1[CH:8]=[C:7]([N:9]2[CH2:12][C:11]3([N:16]([CH3:17])[CH2:15][CH2:14][CH2:13]3)[CH2:10]2)[C:6]([N+:18]([O-])=O)=[CH:5][C:4]=1[NH:21][C:22]1[N:27]=[C:26]([C:28]2[CH:29]=[N:30][N:31]3[CH:36]=[CH:35][CH:34]=[CH:33][C:32]=23)[CH:25]=[CH:24][N:23]=1.[NH4+].[Cl-].C(O)C>[Fe].O>[CH3:1][O:2][C:3]1[CH:8]=[C:7]([N:9]2[CH2:10][C:11]3([N:16]([CH3:17])[CH2:15][CH2:14][CH2:13]3)[CH2:12]2)[C:6]([NH2:18])=[CH:5][C:4]=1[NH:21][C:22]1[N:27]=[C:26]([C:28]2[CH:29]=[N:30][N:31]3[CH:36]=[CH:35][CH:34]=[CH:33][C:32]=23)[CH:25]=[CH:24][N:23]=1

참가 물질

6

반응물 3

HCID 702EthanolHCID 25517Ammonium ChlorideHCID 71240856N-[2-methoxy-4-(8-methyl-2,8-diazaspiro[3.4]octan-2-yl)-5-nitrophenyl]-4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-amine2회

생성물 1

HCID 866773174-methoxy-6-(8-methyl-2,8-diazaspiro[3.4]octan-2-yl)-N'-(4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-yl)benzene-1,3-diamine수율 89.2%

시약·촉매·용매 2

HCID 23925Iron촉매HCID 962Water용매

실험 절차

A mixture of N-[2-methoxy-4-(8-methyl-2,8-diazaspiro[3.4]octan-2-yl)-5-nitrophenyl]-4-pyrazolo[1,5-a]pyridin-3-ylpyrimidin-2-amine (Intermediate 163, 404 mg, 0.83 mmol), iron (278 mg, 4.98 mmol), NH4Cl (33.3 mg, 0.62 mmol), ethanol (15 mL) and water (5 mL) was heated at reflux for 1.5 h. After cooling, the mixture was filtered and the residues were washed with 1:10 CH3OH—CH2Cl2 (20 mL). The combined filtrates were concentrated in vacuo onto silica. Purification by FCC, eluting with 1-10% methanolic ammonia in CH2Cl2 gave the title compound (338 mg, 89%) as a yellow solid; 1H NMR: 1.72 (2H, dt), 2.11 (2H, dd), 2.42 (3H, s), 2.66 (2H, t), 3.63 (2H, d), 3.72 (3H, s), 3.87 (2H, d), 4.03 (2H, s), 6.29 (1H, s), 7.06 (1H, td), 7.10 (1H, s), 7.16 (1H, d), 7.35-7.42 (1H, m), 7.93 (1H, s), 8.27 (1H, d), 8.52 (1H, d), 8.74 (1H, s), 8.77 (1H, t); m/z: ES+ MH+ 457.36.

후처리

  1. temperaturewas heated
  2. temperatureat reflux for 1.5 h
  3. temperatureAfter cooling
  4. filtrationthe mixture was filtered
  5. washthe residues were washed with 1:10 CH3OH—CH2Cl2 (20 mL)
  6. concentrationThe combined filtrates were concentrated in vacuo onto silica
  7. customPurification by FCC
  8. washeluting with 1-10% methanolic ammonia in CH2Cl2

출처 및 근거

ORD 기록
ord-12a09bd2840d4612a52ad5415604e021
출처 데이터셋
uspto-grants-2015_02
특허 번호
US08946235B2

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