Potassium Carbonate → methyl 1-[(2,3-dichlorophenyl)methyl]-6-(4-morpholinyl)-2-(trifluoromethyl)-1H-benzimidazole-4-carboxylate

HRID 44528

反応式

HRID 44528 の反応式
[N:1]1([C:7]2[CH:19]=[C:18]([C:20]([O:22][CH3:23])=[O:21])[C:10]3[NH:11][C:12]([C:14]([F:17])([F:16])[F:15])=[N:13][C:9]=3[CH:8]=2)[CH2:6][CH2:5][O:4][CH2:3][CH2:2]1.C(=O)([O-])[O-].[K+].[K+].Br[CH2:31][C:32]1[CH:37]=[CH:36][CH:35]=[C:34]([Cl:38])[C:33]=1[Cl:39]>CN(C)C=O>[Cl:39][C:33]1[C:34]([Cl:38])=[CH:35][CH:36]=[CH:37][C:32]=1[CH2:31][N:13]1[C:9]2[CH:8]=[C:7]([N:1]3[CH2:6][CH2:5][O:4][CH2:3][CH2:2]3)[CH:19]=[C:18]([C:20]([O:22][CH3:23])=[O:21])[C:10]=2[N:11]=[C:12]1[C:14]([F:17])([F:15])[F:16]

参加物

5

反応物 3

HCID 11430Potassium CarbonateHCID 27346021-(Bromomethyl)-2,3-dichlorobenzeneHCID 178498369HCID 178498369、化合物

生成物 1

HCID 56960268methyl 1-[(2,3-dichlorophenyl)methyl]-6-(4-morpholinyl)-2-(trifluoromethyl)-1H-benzimidazole-4-carboxylate収率 6.05%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

A mixture of methyl 5-(4-morpholinyl)-2-(trifluoromethyl)-1H-benzimidazole-7-carboxylate, prepared as described in Example 45 (1.5 g, 4.56 mmol) and potassium carbonate (1.889 g, 13.67 mmol) in N,N-Dimethylformamide (DMF) (10 mL) was stirred at rt for 10 min. After addition of 1-(bromomethyl)-2,3-dichlorobenzene (1.639 g, 6.83 mmol), the mixture was warmed to 80° C. and stirred for 3 h at this temperature. The resulting mixture was cooled to rt and poured over ice. The precipitate formed was collected by filtration and air dried to give crude product (2.2 g, 4.51 mmol, 99% yield) (91% pure). A portion of this material (230 mg) was purified by reverse phase-HPLC (25 to 95% AcCN in water, plus 0.1% TFA) to give the desired product (137.4 mg, 0.276 mmol, 6.05% yield). 1H NMR (400 MHz, DMSO-d6) δ ppm 7.65 (d, J=2.27 Hz, 1H), 7.61 (dd, J=8.08, 1.26 Hz, 1H), 7.48 (d, J=2.27 Hz, 1H), 7.24 (t, J=7.96 Hz, 1H), 6.25 (dd, J=7.83, 1.26 Hz, 1H), 5.77 (s, 2H), 3.93 (s, 3H), 3.68-3.81 (m, 4H), 3.13-3.24 (m, 4H). MS (ES+) m/e 488 [M+H]+.

後処理

  1. customprepared
  2. temperaturethe mixture was warmed to 80° C.
  3. stirringstirred for 3 h at this temperature
  4. temperatureThe resulting mixture was cooled to rt
  5. additionpoured over ice
  6. customThe precipitate formed
  7. filtrationwas collected by filtration and air
  8. customdried
  9. customto give crude product (2.2 g, 4.51 mmol, 99% yield) (91% pure)
  10. customA portion of this material (230 mg) was purified by reverse phase-HPLC (25 to 95% AcCN in water, plus 0.1% TFA)

出典と根拠

ORDレコード
ord-6ad535e3a9e645e0a79265a0a7f0758b
出典データセット
uspto-grants-2013_09
特許番号
US08541411B2

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