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Cesium carbonate → (R)-1-(4-methyl-3-oxo-1-trityl-2,3-dihydro-1H-pyrazolo[4,3-c]pyridin-6-yl)-3-(1-phenylethyl)urea

HRID 588188
ノート
印刷プレビュー

反応式

HRID 588188 の反応式
Cl[C:2]1[N:7]=[C:6]([CH3:8])[C:5]2[C:9](=[O:31])[NH:10][N:11]([C:12]([C:25]3[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=3)([C:19]3[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=3)[C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=3)[C:4]=2[CH:3]=1.[C:32]1([C@H:38]([NH:40][C:41]([NH2:43])=[O:42])[CH3:39])[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1.C1(P(C2C=CC=CC=2)C2C3OC4C(=CC=CC=4P(C4C=CC=CC=4)C4C=CC=CC=4)C(C)(C)C=3C=CC=2)C=CC=CC=1.C(=O)([O-])[O-].[Cs+].[Cs+]>O1CCOCC1.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[CH3:8][C:6]1[C:5]2[C:9](=[O:31])[NH:10][N:11]([C:12]([C:19]3[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=3)([C:13]3[CH:14]=[CH:15][CH:16]=[CH:17][CH:18]=3)[C:25]3[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=3)[C:4]=2[CH:3]=[C:2]([NH:43][C:41]([NH:40][C@@H:38]([C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)[CH3:39])=[O:42])[N:7]=1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 10796Cesium carbonateHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 13013340(R)-1-(1-phenylethyl)ureaHCID 1182721366-chloro-4-methyl-1-trityl-1H-pyrazolo[4,3-c]pyridin-3(2H)-one2 回

生成物 1

HCID 118272012(R)-1-(4-methyl-3-oxo-1-trityl-2,3-dihydro-1H-pyrazolo[4,3-c]pyridin-6-yl)-3-(1-phenylethyl)urea

試薬・触媒・溶媒 2

HCID 167845palladium(II) acetate触媒HCID 312751,4-Dioxane溶媒

反応条件

温度
80 °C

実験手順

6-Chloro-4-methyl-1-trityl-1H-pyrazolo[4,3-c]pyridin-3 (2H)-one (Intermediate 4B; 300 mg, 0.704 mmol), (R)-1-(1-phenylethyl)urea (139 mg, 0.845 mmol), palladium(II) acetate (31.6 mg, 0.141 mmol), 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (122 mg, 0.211 mmol), and cesium carbonate (574 mg, 1.761 mmol) were taken up in dioxane (10.0 mL) in a 25 mL microwave vial. The vial was evacuated and back-filled with N2 (×3) then the reaction mixture was heated to 80° C. for 24 h. The reaction mixture was diluted with DCM, filtered through celite, and the filtrate was washed with water then brine. The organic layer was dried over sodium sulfate, filtered, concentrated in vacuo, and purified by flash chromatography (20-80% EtOAc/Hexanes) to give (R)-1-(4-methyl-3-oxo-1-trityl-2,3-dihydro-1H-pyrazolo[4,3-c]pyridin-6-yl)-3-(1-phenylethyl)urea. MS ESI calc'd. For C35H31N5O2 [M+1]+ 554. found 554.

後処理

  1. customThe vial was evacuated
  2. additionback-filled with N2 (×3)
  3. additionThe reaction mixture was diluted with DCM
  4. filtrationfiltered through celite
  5. washthe filtrate was washed with water
  6. dry with materialThe organic layer was dried over sodium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated in vacuo
  9. custompurified by flash chromatography (20-80% EtOAc/Hexanes)

出典と根拠

ORDレコード
ord-addc161ea0394e22b3b2f793125db281
出典データセット
uspto-grants-2016_01
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09226922B2

反応ノート

読み込み中…

このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート