1,8-Diazabicyclo(5.4.0)undec-7-ene → Ethyl 2-({[1-(biphenyl-4-ylmethyl)-4,6-difluoro-5-iodo-1H-benzimidazol-2-yl]oxy}methyl)cyclopropanecarboxylate

HRID 340798

反応式

HRID 340798 の反応式
[C:1]1([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[CH:6]=[CH:5][C:4]([CH2:7][N:8]2[C:12]3[CH:13]=[C:14]([F:19])[C:15]([I:18])=[C:16]([F:17])[C:11]=3[N:10]=[C:9]2S(C)(=O)=O)=[CH:3][CH:2]=1.[CH2:30]([O:32][C:33]([CH:35]1[CH2:37][CH:36]1[CH2:38][OH:39])=[O:34])[CH3:31].C1CCN2C(=NCCC2)CC1>CN(C=O)C.CCOC(C)=O.O>[C:1]1([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[CH:6]=[CH:5][C:4]([CH2:7][N:8]2[C:12]3[CH:13]=[C:14]([F:19])[C:15]([I:18])=[C:16]([F:17])[C:11]=3[N:10]=[C:9]2[O:39][CH2:38][CH:36]2[CH2:37][CH:35]2[C:33]([O:32][CH2:30][CH3:31])=[O:34])=[CH:3][CH:2]=1

参加物

7

反応物 3

HCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 13005707Ethyl 2-(hydroxymethyl)cyclopropanecarboxylate2 回HCID 584825301-(biphenyl-4-ylmethyl)-4,6-difluoro-5-iodo-2-(methylsulfonyl)-1H-benzimidazole2 回

生成物 1

HCID 67409526Ethyl 2-({[1-(biphenyl-4-ylmethyl)-4,6-difluoro-5-iodo-1H-benzimidazol-2-yl]oxy}methyl)cyclopropanecarboxylate

試薬・触媒・溶媒 3

HCID 962Water溶媒HCID 6228Dimethylformamide溶媒HCID 8857Ethyl Acetate溶媒

反応条件

温度
80 °C

実験手順

To a solution of 1-(biphenyl-4-ylmethyl)-4,6-difluoro-5-iodo-2-(methylsulfonyl)-1H-benzimidazole (Intermediate 5, 0.500 g, 0.954 mmol) and 2-hydroxymethyl-cyclopropanecarboxylic acid ethyl ester (Intermediate 10, 0.550 g, 3.81 mmol) in 3.2 mL of DMF was added DBU (0.575 mL, 3.81 mmol) dropwise via syringe. The reaction was heated at 80° C. for 2 h, and then diluted with EtOAc and H2O. The layers were separated and the aqueous layer was extracted with EtOAc. The combined organic layers were washed with brine, dried over Na2SO4, filtered, and concentrated. The resulting crude residue was purified on silica gel (eluted 2-15% then 15-20% EtOAc/hexanes: gradient elution) to furnish the desired product. LCMS: calculated for C27H23F2IN2O3 588.38, observed m/e 588.9 (M+H)+ (Rt 2.51/4 min).

後処理

  1. customThe layers were separated
  2. extractionthe aqueous layer was extracted with EtOAc
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customThe resulting crude residue was purified on silica gel (
  8. washeluted 2-15%
  9. wash15-20% EtOAc/hexanes: gradient elution)

出典と根拠

ORDレコード
ord-6dd66103cc324a6ca8cdde952822eeb7
出典データセット
uspto-grants-2014_11
特許番号
US08895596B2

関連ノート

読み込み中…