Hydrochloric Acid → (1-{3-[5-(4-Bromo-phenyl)-1H-imidazol-2-yl]-2-aza-bicyclo[2.2.1]heptane-2-carbonyl}-2-methyl-propyl)-carbamic acid methyl ester

HRID 71678

反応式

HRID 71678 の反応式
C(O[C:6]([N:8]1[CH:13]([C:14]2[NH:15][C:16]([C:19]3[CH:24]=[CH:23][C:22]([Br:25])=[CH:21][CH:20]=3)=[CH:17][N:18]=2)[CH:12]2[CH2:26][CH:9]1[CH2:10][CH2:11]2)=[O:7])(C)(C)C.Cl.[CH3:28][O:29][C:30]([NH:32][CH:33]([CH:37]([CH3:39])[CH3:38])C(O)=O)=[O:31].CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C(N(CC)C(C)C)(C)C>CO.O1CCOCC1>[CH3:28][O:29][C:30](=[O:31])[NH:32][CH:33]([C:6]([N:8]1[CH:13]([C:14]2[NH:15][C:16]([C:19]3[CH:24]=[CH:23][C:22]([Br:25])=[CH:21][CH:20]=3)=[CH:17][N:18]=2)[CH:12]2[CH2:26][CH:9]1[CH2:10][CH2:11]2)=[O:7])[CH:37]([CH3:39])[CH3:38]

参加物

8

反応物 5

HCID 313Hydrochloric AcidHCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 138211012-((Methoxycarbonyl)amino)-3-methylbutanoic acidHCID 596109073-[5-(4-Bromo-phenyl)-1H-imidazol-2-yl]-2-aza-bicyclo[2.2.1]heptane-2-carboxylic acid tert-butyl ester

生成物 1

HCID 66620573(1-{3-[5-(4-Bromo-phenyl)-1H-imidazol-2-yl]-2-aza-bicyclo[2.2.1]heptane-2-carbonyl}-2-methyl-propyl)-carbamic acid methyl ester収率 89%

試薬・触媒・溶媒 2

HCID 887Methanol溶媒HCID 312751,4-Dioxane溶媒

反応条件

温度
50 °C

実験手順

To a solution of 3-[5-(4-bromo-phenyl)-1H-imidazol-2-yl]-2-aza-bicyclo[2.2.1]heptane-2-carboxylic acid tert-butyl ester (1.0 g, 2.4 mmol) in methanol (20 mL) was added 4.0 M solution of HCl in dioxane (4.0 mL, excess). The mixture was stirred for 3 hours at 50° C. and concentrated under reduced pressure. The residue was treated with ether to remove excess HCl. The obtained white solid was dissolved in DMF (20 mL). To the solution was added 2-methoxycarbonylamino-3-methyl-butyric acid (0.46 g, 2.6 mmol), HATU (1.0 g, 2.6 mmol) and N,N-diisopropylethylamine (2.5 mL, 14.4 mmol). The mixture was stirred at ambient for 2 hours, and then the volatile component was removed in vacuo. The residue was dissolved in ethyl acetate (200 mL), washed with 1 N NaOH solution, water and brine, dried over MgSO4, filtered and concentrated in vacuo. The obtained residue was purified by flash chromatography to provide the desired product as a white solid (1.0 g, 89%). m/z 475.1, 477.1 (M+H)+.

後処理

  1. concentrationconcentrated under reduced pressure
  2. additionThe residue was treated with ether
  3. customto remove excess HCl
  4. dissolutionThe obtained white solid was dissolved in DMF (20 mL)
  5. stirringThe mixture was stirred at ambient for 2 hours
  6. customthe volatile component was removed in vacuo
  7. dissolutionThe residue was dissolved in ethyl acetate (200 mL)
  8. washwashed with 1 N NaOH solution, water and brine
  9. dry with materialdried over MgSO4
  10. filtrationfiltered
  11. concentrationconcentrated in vacuo
  12. customThe obtained residue was purified by flash chromatography

出典と根拠

ORDレコード
ord-6fb28d2144154c629f50bf00966fd924
出典データセット
uspto-grants-2014_09
特許番号
US08822430B2

関連ノート

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