Diisopropylethylamine → 4-(6,7-Dimethoxy-quinazolin-4-yl)-piperidine-1-carboxylic acid (4-difluoromethoxy-phenyl)-amide

HRID 657231

반응식

HRID 657231 반응식
[CH3:1][O:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][C:12]=1[O:13][CH3:14])[N:9]=[CH:8][N:7]=[C:6]2[CH:15]1[CH2:20][CH2:19][N:18]([C:21](Cl)=[O:22])[CH2:17][CH2:16]1.[F:24][CH:25]([F:34])[O:26][C:27]1[CH:33]=[CH:32][C:30]([NH2:31])=[CH:29][CH:28]=1.CCN(C(C)C)C(C)C>CS(C)=O>[F:24][CH:25]([F:34])[O:26][C:27]1[CH:28]=[CH:29][C:30]([NH:31][C:21]([N:18]2[CH2:19][CH2:20][CH:15]([C:6]3[C:5]4[C:10](=[CH:11][C:12]([O:13][CH3:14])=[C:3]([O:2][CH3:1])[CH:4]=4)[N:9]=[CH:8][N:7]=3)[CH2:16][CH2:17]2)=[O:22])=[CH:32][CH:33]=1

참가 물질

5

반응물 3

HCID 81531DiisopropylethylamineHCID 7373634-(Difluoromethoxy)anilineHCID 587707144-(6,7-Dimethoxy-quinazolin-4-yl)-piperidine-1-carbonyl chloride

생성물 1

HCID 587707164-(6,7-Dimethoxy-quinazolin-4-yl)-piperidine-1-carboxylic acid (4-difluoromethoxy-phenyl)-amide수율 32%

시약·촉매·용매 1

HCID 679Dimethyl Sulfoxide용매

반응 조건

온도
100 °C

실험 절차

To a solution of 4-(6,7-dimethoxy-quinazolin-4-yl)-piperidine-1-carbonyl chloride (46.9 mg, 0.14 mmol), as prepared in Example 3a, in DMSO (1 mL) was added 4-(difluoromethoxy)aniline (26.6 mg, 0.17 mmol), followed by DIEA (35.9 mg, 0.28 mmol). The mixture was heated at 100° C. with stirring. After 2 h, it was cooled to room temperature and partitioned between EtOAc and water. The combined EtOAc extracts were dried (Na2SO4) and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel (EtOAc→5% MeOH/EtOAc as eluent) to afford the title compound as a white solid (20.4 mg, 32%). 1H NMR (300 MHz, CDCl3) δ 9.09 (s, 1H), 7.40 (s, 1H), 7.38 (d, J=8.99 Hz, 2H), 7.27 (s, 1H), 7.07 (d, J=8.93 Hz, 2H), 6.48 (s, 1H), 6.45 (t, J=74.22 Hz, 1H), 4.28 (m, 2H), 4.08 (s, 3H), 4.07 (s, 3H), 3.62 (m, 1H), 3.20 (td, J=13.02 and 2.64 Hz, 2H), 2.14 (m, 2H), 2.01 (m, 2H). LC-MS (ESI) calcd mass 458.2, found 459.3 (MH+).

후처리

  1. temperatureit was cooled to room temperature
  2. custompartitioned between EtOAc and water
  3. dry with materialThe combined EtOAc extracts were dried (Na2SO4)
  4. concentrationconcentrated under reduced pressure
  5. customThe residue was purified by flash column chromatography on silica gel (EtOAc→5% MeOH/EtOAc as eluent)

출처 및 근거

ORD 기록
ord-4c43b9a196ce4f3f856351e7c02a74b6
출처 데이터셋
uspto-grants-2011_12
특허 번호
US08071768B2

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