Potassium Carbonate → 5-{[1-(cyclopropylcarbonyl)-3-azetidinyl]methyl}-4-[4-(1H-indazol-6-yl)phenyl]-2,4-dihydro-3H-1,2,4-triazol-3-one

HRID 2405371ノート

反応式

HRID 2405371 の反応式
Br[C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:12]([CH2:13][CH:14]3[CH2:17][N:16]([C:18]([CH:20]4[CH2:22][CH2:21]4)=[O:19])[CH2:15]3)=[N:11][NH:10][C:9]2=[O:23])=[CH:4][CH:3]=1.CC1(C)C(C)(C)OB([C:32]2[CH:33]=[C:34]3[C:38](=[CH:39][CH:40]=2)[NH:37][N:36]=[CH:35]3)O1.C(=O)([O-])[O-].[K+].[K+]>O1CCOCC1.C(OCC)(=O)C>[CH:20]1([C:18]([N:16]2[CH2:17][CH:14]([CH2:13][C:12]3[N:8]([C:5]4[CH:6]=[CH:7][C:2]([C:40]5[CH:39]=[C:38]6[C:34]([CH:35]=[N:36][NH:37]6)=[CH:33][CH:32]=5)=[CH:3][CH:4]=4)[C:9](=[O:23])[NH:10][N:11]=3)[CH2:15]2)=[O:19])[CH2:22][CH2:21]1

参加物

6

反応物 3

HCID 11430Potassium CarbonateHCID 177504691H-Indazole-5-boronic acid pinacol esterHCID 673551434-(4-bromophenyl)-5-{[1-(cyclopropylcarbonyl)-3-azetidinyl]methyl}-2,4-dihydro-3H-1,2,4-triazol-3-one

生成物 1

HCID 673758655-{[1-(cyclopropylcarbonyl)-3-azetidinyl]methyl}-4-[4-(1H-indazol-6-yl)phenyl]-2,4-dihydro-3H-1,2,4-triazol-3-one収率 26%

試薬・触媒・溶媒 2

HCID 8857Ethyl Acetate溶媒HCID 312751,4-Dioxane溶媒

実験手順

In a microwave vial purged with nitrogen, a mixture of 4-(4-bromophenyl)-5-{[1-(cyclopropylcarbonyl)-3-azetidinyl]methyl}-2,4-dihydro-3H-1,2,4-triazol-3-one (70 mg, 0.186 mmol), 1,1′-bis(diphenylphosphino)ferrocene-palladium(II)dichloride dichloromethane complex (8 mg, 9.80 μmol), and 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazole (50 mg, 0.205 mmol)) in 1,4-dioxane (2 mL) and 2M aq potassium carbonate (0.7 mL, 1.400 mmol) was stirred at 100° C. in an oil bath for 16 h. The reaction was cooled to room temperature and diluted with ethyl acetate (10 mL). The layers were separated and the aqueous layer was adjusted to pH˜6-6.5 using 1N aq HCl. The aqueous layer was extracted with ethyl acetate (2×30 mL). The organic layers were combined, dried over MgSO4, and concentrated in vacuo. Purification of the residue by reverse phase HPLC (10-90% acetonitrile/water+0.1% NH4OH) provided the title compound as a white solid (20 mg, 26%). MS(ES)+ m/e 415.2 [M+H]+.

後処理

  1. customIn a microwave vial purged with nitrogen
  2. customThe layers were separated
  3. extractionThe aqueous layer was extracted with ethyl acetate (2×30 mL)
  4. dry with materialdried over MgSO4
  5. concentrationconcentrated in vacuo
  6. customPurification of the residue by reverse phase HPLC (10-90% acetonitrile/water+0.1% NH4OH)

出典と根拠

ORDレコード
ord-f91f89a3c7ad48d984a6cb9e2ddf9267
出典データセット
uspto-grants-2014_08
特許番号
US08802864B2

反応ノート

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