Water → tert-butyl (3R,4R)-4-{[(4-bromophenyl)carbonyl](methyl)amino}-3-(3,4-dichlorophenyl)piperidine-1-carboxylate

HRID 1260985노트

반응식

HRID 1260985 반응식
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]([NH:10][C@@H:11]2[CH2:16][CH2:15][N:14]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[CH2:13][C@H:12]2[C:24]2[CH:29]=[CH:28][C:27]([Cl:30])=[C:26]([Cl:31])[CH:25]=2)=[O:9])=[CH:4][CH:3]=1.[H-].[Na+].[CH3:34]I.O>CN(C=O)C>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]([N:10]([CH3:34])[C@@H:11]2[CH2:16][CH2:15][N:14]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[CH2:13][C@H:12]2[C:24]2[CH:29]=[CH:28][C:27]([Cl:30])=[C:26]([Cl:31])[CH:25]=2)=[O:9])=[CH:6][CH:7]=1

참가 물질

6

반응물 4

HCID 962WaterHCID 6328Methyl iodideHCID 24758Sodium hydrideHCID 86631418tert-butyl (3R,4R)-4-{[(4-bromophenyl)carbonyl]amino}-3-(3,4-dichlorophenyl)piperidine-1-carboxylate

생성물 1

HCID 86631417tert-butyl (3R,4R)-4-{[(4-bromophenyl)carbonyl](methyl)amino}-3-(3,4-dichlorophenyl)piperidine-1-carboxylate수율 92%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

실험 절차

To a solution of the compound (1.16 g) obtained in step 1 in DMF (22 mL) was added sodium hydride (60% in oil, 175 mg) at 0° C., and the mixture was stirred for 10 min. Then, methyl iodide (681 μL) was added, and the mixture was stirred overnight at room temperature. To the reaction mixture was added water, and the resultant product was extracted with ethyl acetate. The organic layer was washed with brine and dried, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (solvent gradient; 10→90% ethyl acetate/hexane) to give tert-butyl (3R,4R)-4-{[(4-bromophenyl)carbonyl](methyl)amino}-3-(3,4-dichlorophenyl)piperidine-1-carboxylate (1.09 g, 92%) as a white powder.

후처리

  1. stirringthe mixture was stirred overnight at room temperature
  2. extractionthe resultant product was extracted with ethyl acetate
  3. washThe organic layer was washed with brine
  4. customdried
  5. customthe solvent was evaporated under reduced pressure
  6. customThe obtained residue was purified by silica gel column chromatography (solvent gradient; 10→90% ethyl acetate/hexane)

출처 및 근거

ORD 기록
ord-247558f532de4546838dea5ae471ca1a
출처 데이터셋
uspto-grants-2013_06
특허 번호
US08470816B2

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