1,8-Diazabicyclo(5.4.0)undec-7-ene → Ethyl 3-{[1-(biphenyl-4-ylmethyl)-4,6-difluoro-5-iodo-1H-benzimidazol-2-yl]oxy}cyclopentanecarboxylate

HRID 340790ノート

反応式

HRID 340790 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.[OH:30][CH:31]1[CH2:35][CH2:34][CH:33]([C:36]([O:38][CH2:39][CH3:40])=[O:37])[CH2:32]1.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:30][CH:31]2[CH2:35][CH2:34][CH:33]([C:36]([O:38][CH2:39][CH3:40])=[O:37])[CH2:32]2)=[CH:3][CH:2]=1

参加物

7

反応物 3

HCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 53407781Ethyl 3-hydroxycyclopentanecarboxylate2 回HCID 584825301-(biphenyl-4-ylmethyl)-4,6-difluoro-5-iodo-2-(methylsulfonyl)-1H-benzimidazole2 回

生成物 1

HCID 67408440Ethyl 3-{[1-(biphenyl-4-ylmethyl)-4,6-difluoro-5-iodo-1H-benzimidazol-2-yl]oxy}cyclopentanecarboxylate

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, 0.650 g, 1.24 mmol) and ethyl 3-hydroxycyclopentanecarboxylate (Intermediate 9, 0.784 g, 4.96 mmol) in 4 mL of DMF was added DBU (0.747 mL, 4.96 mmol) dropwise via syringe. The reaction was heated overnight at 80° C., 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. Purification of the resulting residue by flash chromatography (3-25% EtOAc/hexanes) afforded the desired product. LCMS: calculated for C28H25F2IN2O3 602.41, observed m/e 602.9 (M+H)+ (Rt 2.57/4 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. customPurification of the resulting residue by flash chromatography (3-25% EtOAc/hexanes)

出典と根拠

ORDレコード
ord-b6e2dd87be8243feaef17a5eac9bc664
出典データセット
uspto-grants-2014_11
特許番号
US08895596B2

反応ノート

読み込み中…