1,2-Dimethoxyethane → 1-{4-[1-(Difluoromethyl)-1h-pyrazol-4-yl]-2-fluorophenyl}-5-methoxy-3-(1-phenyl-1h-pyrazol-5-yl)pyridazin-4(1h)-one

HRID 1895339

反応式

HRID 1895339 の反応式
FC(F)(F)S(O[C:7]1[CH:12]=[CH:11][C:10]([N:13]2[CH:18]=[C:17]([O:19][CH3:20])[C:16](=[O:21])[C:15]([C:22]3[N:26]([C:27]4[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=4)[N:25]=[CH:24][CH:23]=3)=[N:14]2)=[C:9]([F:33])[CH:8]=1)(=O)=O.[F:36][CH:37]([F:52])[N:38]1[CH:42]=[C:41](B2OC(C)(C)C(C)(C)O2)[CH:40]=[N:39]1.C([O-])([O-])=O.[Na+].[Na+].COCCOC>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.O>[F:36][CH:37]([F:52])[N:38]1[CH:42]=[C:41]([C:7]2[CH:12]=[CH:11][C:10]([N:13]3[CH:18]=[C:17]([O:19][CH3:20])[C:16](=[O:21])[C:15]([C:22]4[N:26]([C:27]5[CH:28]=[CH:29][CH:30]=[CH:31][CH:32]=5)[N:25]=[CH:24][CH:23]=4)=[N:14]3)=[C:9]([F:33])[CH:8]=2)[CH:40]=[N:39]1

参加物

7

反応物 4

HCID 80711,2-DimethoxyethaneHCID 10340Sodium CarbonateHCID 497579861-(difluoromethyl)-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 580722213-fluoro-4-[5-methoxy-4-oxo-3-(1-phenyl-1H-pyrazol-5-yl)pyridazin-1(4H)-yl]phenyl trifluoromethanesulfonate

生成物 1

HCID 580722191-{4-[1-(Difluoromethyl)-1h-pyrazol-4-yl]-2-fluorophenyl}-5-methoxy-3-(1-phenyl-1h-pyrazol-5-yl)pyridazin-4(1h)-one収率 85%

試薬・触媒・溶媒 2

HCID 178418397HCID 178418397、化合物触媒HCID 962Water溶媒2 回

実験手順

A mixture of 3-fluoro-4-[5-methoxy-4-oxo-3-(1-phenyl-1H-pyrazol-5-yl)pyridazin-1(4H)-yl]phenyl trifluoromethanesulfonate (230 mg, 0.45 mmol), 1-(difluoromethyl)-1H-pyrazole-4-boronic acid pinacol ester (122 mg, 0.50 mmol), Pd(PPh3)4 (17 mg, 0.015 mmol), Na2CO3 (106 mg, 1.0 mmol), DME (4 mL), and H2O (1 mL) was refluxed for 3 h under Ar atmosphere. After cooling to room temperature, the reaction mixture was poured into water and extracted with AcOEt. The extract was washed with brine, dried over MgSO4, and concentrated under reduced pressure. The residue was purified by basic silica gel column chromatography eluting with AcOEt and recrystallized from MeOH/H2O to give the title compound (183 mg, 85% yield) as a white solid: mp 185-187° C.; 1H NMR (300 MHz, CDCl3): δ ppm 3.92 (3H, s), 6.41 (1H, t, J=8.3 Hz), 7.03-7.48 (10H, m), 7.79 (1H, d, J=1.9 Hz), 7.83 (1H, d, J=2.3 Hz), 7.91 (1H, d, J=0.8 Hz). LC-MS (ESI) m/z 479 [M+H]+. Anal. Calcd for C24H17F3N6O2: C, 60.25; H, 3.58; N, 17.57. Found: C, 60.19; H, 3.48; N, 17.52.

後処理

  1. temperaturewas refluxed for 3 h under Ar atmosphere
  2. extractionextracted with AcOEt
  3. washThe extract was washed with brine
  4. dry with materialdried over MgSO4
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by basic silica gel column chromatography
  7. washeluting with AcOEt
  8. customrecrystallized from MeOH/H2O

出典と根拠

ORDレコード
ord-80473139d0af4dacbf95b7ab557311c3
出典データセット
uspto-grants-2013_08
特許番号
US08513251B2

関連ノート

読み込み中…