Water → N-pyridin-4-yl-4-(3-pyridin-2-yl-1,2,4-thiadiazol-5-yl)piperazine-1-carboxamide

HRID 2263018노트

반응식

HRID 2263018 반응식
[N:1]1[CH:6]=[CH:5][C:4]([NH:7][C:8](=[O:15])OCC(Cl)(Cl)Cl)=[CH:3][CH:2]=1.[N:16]1[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=1[C:22]1[N:26]=[C:25]([N:27]2[CH2:32][CH2:31][NH:30][CH2:29][CH2:28]2)[S:24][N:23]=1.C(N(C(C)C)CC)(C)C.O>CS(C)=O>[N:1]1[CH:2]=[CH:3][C:4]([NH:7][C:8]([N:30]2[CH2:29][CH2:28][N:27]([C:25]3[S:24][N:23]=[C:22]([C:17]4[CH:18]=[CH:19][CH:20]=[CH:21][N:16]=4)[N:26]=3)[CH2:32][CH2:31]2)=[O:15])=[CH:5][CH:6]=1

참가 물질

6

반응물 4

HCID 962WaterHCID 81531DiisopropylethylamineHCID 142572942,2,2-Trichloroethyl pyridin-4-ylcarbamateHCID 687780931-(3-Pyridin-2-yl-1,2,4-thiadiazol-5-yl)piperazine

생성물 1

HCID 68778017N-pyridin-4-yl-4-(3-pyridin-2-yl-1,2,4-thiadiazol-5-yl)piperazine-1-carboxamide수율 23%

시약·촉매·용매 1

HCID 679Dimethyl Sulfoxide용매

실험 절차

A mixed solution of 2,2,2-trichloroethyl pyridin-4-ylcarbamate (198 mg, 0.735 mmol), 1-(3-pyridin-2-yl-1,2,4-thiadiazol-5-yl)piperazine (200 mg, 0.809 mmol) and diisopropylethylamine (0.139 ml, 0.809 mmol) in dimethyl sulfoxide (2.5 ml) was stirred at 80° C. for 3 hours. Water was poured to the reaction mixture, and the resulting solution was extracted with a mixed solution of ethyl acetate/tetrahydrofuran (1:1). The extract was washed with water and dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate:methanol=9:1) and recrystallized from a mixed solvent of hexane and tetrahydrofuran to give 62.1 mg (23.0%) of the desired product as a solid.

후처리

  1. extractionthe resulting solution was extracted with a mixed solution of ethyl acetate/tetrahydrofuran (1:1)
  2. washThe extract was washed with water
  3. dry with materialdried over anhydrous magnesium sulfate
  4. distillationthe solvent was distilled off under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (ethyl acetate:methanol=9:1)
  6. customrecrystallized from a mixed solvent of hexane and tetrahydrofuran

출처 및 근거

ORD 기록
ord-2c37bade6558433a88e7f25d21d40baf
출처 데이터셋
uspto-grants-2010_12
특허 번호
US07851473B2

반응 노트

불러오는 중…