Potassium Carbonate → 4-[1-(2-Methyl-8-nitro-1-oxo-1,2,3,4-tetrahydro-isoquinolin-5-yl)-piperidin-4-yl]-piperazine-1-carboxylic acid tert-butyl ester

HRID 604277노트

반응식

HRID 604277 반응식
F[C:2]1[CH:11]=[CH:10][C:9]([N+:12]([O-:14])=[O:13])=[C:8]2[C:3]=1[CH2:4][CH2:5][N:6]([CH3:16])[C:7]2=[O:15].[C:17]([O:21][C:22]([N:24]1[CH2:29][CH2:28][N:27]([CH:30]2[CH2:35][CH2:34][NH:33][CH2:32][CH2:31]2)[CH2:26][CH2:25]1)=[O:23])([CH3:20])([CH3:19])[CH3:18].C([O-])([O-])=O.[K+].[K+]>CS(C)=O>[C:17]([O:21][C:22]([N:24]1[CH2:25][CH2:26][N:27]([CH:30]2[CH2:35][CH2:34][N:33]([C:2]3[CH:11]=[CH:10][C:9]([N+:12]([O-:14])=[O:13])=[C:8]4[C:3]=3[CH2:4][CH2:5][N:6]([CH3:16])[C:7]4=[O:15])[CH2:32][CH2:31]2)[CH2:28][CH2:29]1)=[O:23])([CH3:20])([CH3:18])[CH3:19]

참가 물질

5

반응물 3

HCID 11430Potassium CarbonateHCID 17750356tert-Butyl 4-(piperidin-4-yl)piperazine-1-carboxylateHCID 598491765-fluoro-2-methyl-8-nitro-3,4-dihydro-2H-isoquinolin-1-one

생성물 1

HCID 598491704-[1-(2-Methyl-8-nitro-1-oxo-1,2,3,4-tetrahydro-isoquinolin-5-yl)-piperidin-4-yl]-piperazine-1-carboxylic acid tert-butyl ester수율 41%

시약·촉매·용매 1

HCID 679Dimethyl Sulfoxide용매

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온도
85 °C

실험 절차

A mixture of 5-fluoro-2-methyl-8-nitro-3,4-dihydro-2H-isoquinolin-1-one (11.65 g, 0.052 mol), 4-piperidin-4-yl-piperazine-1-carboxylic acid tert-butyl ester (28.0 g, 0.1039 mol), K2CO3 (8.98 g, 0.065 mol) in DMSO (350 mL) was stirred at 85° C. for 12 hours. After cooling to room temperature, ice-water (500 mL) was added. The mixture was extracted with AcOEt. The organic layer was washed with water followed by brine, dried over Na2SO4 and evaporated. The residue was purified by silica gel column chromatography (AcOEt; then AcOEt/MeOH=6/1) to give 10.09 g of the desired product 4-[1-(2-methyl-8-nitro-1-oxo-1,2,3,4-tetrahydro-isoquinolin-5-yl)-piperidin-4-yl]-piperazine-1-carboxylic acid tert-butyl ester as pale yellow solid in 41% yield.

후처리

  1. temperatureAfter cooling to room temperature
  2. extractionThe mixture was extracted with AcOEt
  3. washThe organic layer was washed with water
  4. dry with materialdried over Na2SO4
  5. customevaporated
  6. customThe residue was purified by silica gel column chromatography (AcOEt

출처 및 근거

ORD 기록
ord-ebeaa36887304526a75545382def6811
출처 데이터셋
uspto-grants-2011_03
특허 번호
US07910585B2

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