Water → tert-butyl 5-methoxy-3-(1-methyl-6-tosyl-1,6-dihydropyrazolo[3,4-d]pyrrolo[2,3-b]pyridin-7-yl)-1H-indole-1-carboxylate

HRID 1628053ノート

反応式

HRID 1628053 の反応式
I[C:2]1[N:14]([S:15]([C:18]2[CH:24]=[CH:23][C:21]([CH3:22])=[CH:20][CH:19]=2)(=[O:17])=[O:16])[C:5]2=[N:6][CH:7]=[C:8]3[CH:12]=[N:11][N:10]([CH3:13])[C:9]3=[C:4]2[CH:3]=1.[CH3:25][O:26][C:27]1[CH:28]=[C:29]2[C:33](=[CH:34][CH:35]=1)[N:32]([C:36]([O:38][C:39]([CH3:42])([CH3:41])[CH3:40])=[O:37])[CH:31]=[C:30]2B1OC(C)(C)C(C)(C)O1.C([O-])([O-])=O.[Cs+].[Cs+].O>C(Cl)Cl.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.O1CCOCC1>[CH3:25][O:26][C:27]1[CH:28]=[C:29]2[C:33](=[CH:34][CH:35]=1)[N:32]([C:36]([O:38][C:39]([CH3:42])([CH3:41])[CH3:40])=[O:37])[CH:31]=[C:30]2[C:2]1[N:14]([S:15]([C:18]2[CH:19]=[CH:20][C:21]([CH3:22])=[CH:23][CH:24]=2)(=[O:17])=[O:16])[C:5]2=[N:6][CH:7]=[C:8]3[CH:12]=[N:11][N:10]([CH3:13])[C:9]3=[C:4]2[CH:3]=1

参加物

8

反応物 4

HCID 962WaterHCID 10796Cesium carbonateHCID 53217218tert-Butyl 5-methoxy-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole-1-carboxylateHCID 580099867-Iodo-1-methyl-6-tosyl-1,6-dihydropyrazolo[3,4-d]pyrrolo[2,3-b]pyridine

生成物 1

HCID 58382058tert-butyl 5-methoxy-3-(1-methyl-6-tosyl-1,6-dihydropyrazolo[3,4-d]pyrrolo[2,3-b]pyridin-7-yl)-1H-indole-1-carboxylate収率 100.4%

試薬・触媒・溶媒 3

HCID 178418476HCID 178418476、化合物触媒HCID 6344Dichloromethane溶媒HCID 312751,4-Dioxane溶媒

反応条件

温度
85 °C

実験手順

A flask was charged with 7-iodo-1-methyl-6-tosyl-1,6-dihydropyrazolo[3,4-d]pyrrolo[2,3-b]pyridine (0.80 g, 1.76 mmol, Preparation #1), tert-butyl 5-methoxy-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole-1-carboxylate (0.792 g, 2.12 mmol, prepared using H from tert-butyl 3-bromo-5-methoxy-1H-indole-1-carboxylate (SynChem) with 4,4,5,5-tetramethyl-1,3,2-dioxaborolane), Cs2CO3 (1.44 g, 4.42 mmol), PdCl2(PPh3)2 (0.074 g, 0.106 mmol), water (2.6 mL) and 1,4-dioxane (8.0 mL). The mixture was heated to about 85° C. for about 2 h and then cooled to rt. The mixture was diluted with DCM (60 mL) and washed with water (30 mL). The organic layer was dried over anhydrous MgSO4, filtered and concentrated in vacuo. The crude material was purified by silica gel chromatography eluting with a gradient of 0 to 20% EtOAc/DCM to afford tert-butyl 5-methoxy-3-(1-methyl-6-tosyl-1,6-dihydropyrazolo[3,4-d]pyrrolo[2,3-b]pyridin-7-yl)-1H-indole-1-carboxylate (1.01 g, 100%): LC/MS (Table 2, Method c) Rt=1.71 min; MS m/z 572 (M+H)+.

後処理

  1. temperaturecooled to rt
  2. washwashed with water (30 mL)
  3. dry with materialThe organic layer was dried over anhydrous MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe crude material was purified by silica gel chromatography
  7. washeluting with a gradient of 0 to 20% EtOAc/DCM

出典と根拠

ORDレコード
ord-b1fd7f994419495a9c502cebf110894b
出典データセット
uspto-grants-2014_07
特許番号
US08785639B2

反応ノート

読み込み中…