반응식
[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]=1참가 물질
반응물 3
생성물 1
시약·촉매·용매 3
반응 조건
- 온도
- 80 °C
실험 절차
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).
후처리
- customThe layers were separated
- extractionthe aqueous layer was extracted with EtOAc
- washThe combined organic layers were washed with brine
- dry with materialdried over Na2SO4
- filtrationfiltered
- concentrationconcentrated
- customThe resulting crude residue was purified on silica gel (
- washeluted 2-15%
- wash15-20% EtOAc/hexanes: gradient elution)
출처 및 근거
- ORD 기록
- ord-6dd66103cc324a6ca8cdde952822eeb7
- 출처 데이터셋
- uspto-grants-2014_11
- 특허 번호
- US08895596B2
연결된 노트
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