Potassium Phosphate, Tribasic → Ethyl 2-[6-{1-[(1,1-dimethylethyl)(dimethyl)silyl]-1H-indol-4-yl}-1-(phenylsulfonyl)-1H-indazol-4-yl]-1,3-oxazole-5-carboxylate

HRID 520563ノート

反応式

HRID 520563 の反応式
Cl[C:2]1[CH:10]=[C:9]2[C:5]([CH:6]=[N:7][N:8]2[S:11]([C:14]2[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=2)(=[O:13])=[O:12])=[C:4]([C:20]2[O:21][C:22]([C:25]([O:27][CH2:28][CH3:29])=[O:26])=[CH:23][N:24]=2)[CH:3]=1.[CH3:30][C:31]([Si:34]([CH3:48])([CH3:47])[N:35]1[C:43]2[C:38](=[C:39](B(O)O)[CH:40]=[CH:41][CH:42]=2)[CH:37]=[CH:36]1)([CH3:33])[CH3:32].[O-]P([O-])([O-])=O.[K+].[K+].[K+]>O1CCOCC1.O.Cl[Pd]C1C=CC=CC=1C1C=CC=CC=1N(C)C.[C@H]12C[C@H](CC1)CC2PC1C[C@H]2C[C@@H]1CC2>[CH3:33][C:31]([Si:34]([CH3:48])([CH3:47])[N:35]1[C:43]2[C:38](=[C:39]([C:2]3[CH:10]=[C:9]4[C:5]([CH:6]=[N:7][N:8]4[S:11]([C:14]4[CH:15]=[CH:16][CH:17]=[CH:18][CH:19]=4)(=[O:13])=[O:12])=[C:4]([C:20]4[O:21][C:22]([C:25]([O:27][CH2:28][CH3:29])=[O:26])=[CH:23][N:24]=4)[CH:3]=3)[CH:40]=[CH:41][CH:42]=2)[CH:37]=[CH:36]1)([CH3:30])[CH3:32]

参加物

7

反応物 3

HCID 62657Potassium Phosphate, TribasicHCID 223523971-(tert-Butyldimethylsilyl)-1H-indole-4-boronic acidHCID 59564714HCID 59564714、化合物

生成物 1

HCID 59564707Ethyl 2-[6-{1-[(1,1-dimethylethyl)(dimethyl)silyl]-1H-indol-4-yl}-1-(phenylsulfonyl)-1H-indazol-4-yl]-1,3-oxazole-5-carboxylate収率 38.9%

試薬・触媒・溶媒 3

HCID 178420574HCID 178420574、化合物触媒HCID 962Water溶媒HCID 312751,4-Dioxane溶媒

反応条件

温度
100 °C

実験手順

To a solution of ethyl 2-[6-chloro-1-(phenylsulfonyl)-1H-indazol-4-yl]-1,3-oxazole-5-carboxylate (1.5 g, 3.47 mmol) in 1,4-dioxane (15 ml) and water (1.5 ml) was added {1-[(1,1-dimethylethyl)(dimethyl)silyl]-1H-indol-4-yl}boronic acid (1.243 g, 4.52 mmol, available from Combi-Blocks Inc.), chloro[2′-(dimethylamino)-2-biphenylyl]palladium-1(1R,4S)-bicyclo[2.2.1]hept-2-yl[(1S,4R)-bicyclo[2.2.1]hept-2-yl]phosphane (0.097 g, 0.174 mmol) and potassium phosphate tribasic (2.212 g, 10.42 mmol). The reaction mixture was heated to 100° C. for 3 h, the solvent removed in vacuo and the residue partitioned between dichloromethane (20 ml) and water (10 ml). Saturated sodium chloride solution (100 ml) was added and the organic phase separated and dried over anhydrous sodium sulphate. The crude product was purified by silica gel chromatography, eluting with a gradient of cyclohexane and ethyl acetate. The desired fractions were concentrated to give the title compound as a white solid (0.846 g), which by LCMS contained some unreacted starting material.

後処理

  1. customthe solvent removed in vacuo
  2. customthe residue partitioned between dichloromethane (20 ml) and water (10 ml)
  3. additionSaturated sodium chloride solution (100 ml) was added
  4. customthe organic phase separated
  5. dry with materialdried over anhydrous sodium sulphate
  6. customThe crude product was purified by silica gel chromatography
  7. washeluting with a gradient of cyclohexane and ethyl acetate
  8. concentrationThe desired fractions were concentrated

出典と根拠

ORDレコード
ord-c7eb548b803b4a1ea2ba4a6899811226
出典データセット
uspto-grants-2016_05
特許番号
US09326987B2

反応ノート

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