Cesium carbonate → 1-(4-methoxybenzyl)-3-methyl-5-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrazolo[3,4-b]pyridine

HRID 1629951ノート

反応式

HRID 1629951 の反応式
Br[C:2]1[CH:3]=[C:4]2[C:10]([CH3:11])=[N:9][N:8]([CH2:12][C:13]3[CH:18]=[CH:17][C:16]([O:19][CH3:20])=[CH:15][CH:14]=3)[C:5]2=[N:6][CH:7]=1.[CH3:21][N:22]1[CH2:27][CH2:26][N:25]([C:28]2[CH:33]=[CH:32][C:31](B3OC(C)(C)C(C)(C)O3)=[CH:30][CH:29]=2)[CH2:24][CH2:23]1.C([O-])([O-])=O.[Cs+].[Cs+]>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>[CH3:20][O:19][C:16]1[CH:17]=[CH:18][C:13]([CH2:12][N:8]2[C:5]3=[N:6][CH:7]=[C:2]([C:31]4[CH:30]=[CH:29][C:28]([N:25]5[CH2:26][CH2:27][N:22]([CH3:21])[CH2:23][CH2:24]5)=[CH:33][CH:32]=4)[CH:3]=[C:4]3[C:10]([CH3:11])=[N:9]2)=[CH:14][CH:15]=1

参加物

6

反応物 3

HCID 10796Cesium carbonateHCID 179989051-Methyl-4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperazineHCID 578563335-bromo-1-(4-methoxybenzyl)-3-methyl-1H-pyrazolo[3,4-b]pyridine

生成物 1

HCID 683884351-(4-methoxybenzyl)-3-methyl-5-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrazolo[3,4-b]pyridine

試薬・触媒・溶媒 2

HCID 178418397HCID 178418397、化合物触媒HCID 80711,2-Dimethoxyethane溶媒

反応条件

温度
80 °C

実験手順

The starting material 5-bromo-1-(4-methoxybenzyl)-3-methyl-1H-pyrazolo[3,4-b]pyridine (7) (145 mg, 0.44 mmol, 1 eq) and 1-methyl-4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperazine (159) (135 mg, 0.44 mmol, 1 eq) in DME (10 mL) was degassed and purged under argon atmosphere for 10 min. To this reaction mixture was charged Cs2CO3 (280 mg, 0.88 mmol, 2 eq) followed by addition of Pd(PPh3)4 (15 mg, 0.01 mmol), degassing and purging under argon for additional 10 min. The reaction mixture was heated at 80° C. for 12 h in a sealed tube. After completion of the reaction, the solvents were removed and reaction mixtures were extracted into EtOAc, dried over Na2SO4 and the solvents distilled off. The crude material was submitted for flash column purification using 5% MeOH/CHCl3 to obtain off-white solid compound 1-(4-methoxybenzyl)-3-methyl-5-(4-(4-methylpiperazin-1-yl)phenyl)-1H-pyrazolo[3,4-b]pyridine 160 in 65 mg quantity.

後処理

  1. custompurged under argon atmosphere for 10 min
  2. customdegassing
  3. custompurging under argon for additional 10 min
  4. customAfter completion of the reaction
  5. customthe solvents were removed
  6. customreaction mixtures
  7. extractionwere extracted into EtOAc
  8. dry with materialdried over Na2SO4
  9. distillationthe solvents distilled off
  10. customThe crude material was submitted for flash column purification

出典と根拠

ORDレコード
ord-aa0ffe6552484acb910921b17be18b11
出典データセット
uspto-grants-2014_07
特許番号
US08791112B2

反応ノート

読み込み中…