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Cesium carbonate → tert-butyl (3R,4S)-3-({cyclopropyl[3-(2-methoxyethoxy)-5-(3-methoxypropyl)benzyl]amino}carbonyl)-4-{4-[2-(2,6-dichloro-4-methylphenoxy)-ethoxy]phenyl}piperidine-1-carboxylate

HRID 658255
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인쇄 미리보기

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HRID 658255 반응식
[CH:1]1([N:4]([CH2:39][C:40]2[CH:45]=[C:44]([CH2:46][CH2:47][CH2:48][O:49][CH3:50])[CH:43]=[C:42]([OH:51])[CH:41]=2)[C:5]([C@@H:7]2[C@@H:12]([C:13]3[CH:18]=[CH:17][C:16]([O:19][CH2:20][CH2:21][O:22][C:23]4[C:28]([Cl:29])=[CH:27][C:26]([CH3:30])=[CH:25][C:24]=4[Cl:31])=[CH:15][CH:14]=3)[CH2:11][CH2:10][N:9]([C:32]([O:34][C:35]([CH3:38])([CH3:37])[CH3:36])=[O:33])[CH2:8]2)=[O:6])[CH2:3][CH2:2]1.C(=O)([O-])[O-].[Cs+].[Cs+].[CH3:58][O:59][CH2:60][CH2:61]Br>CN(C=O)C.CCOC(C)=O>[CH:1]1([N:4]([CH2:39][C:40]2[CH:45]=[C:44]([CH2:46][CH2:47][CH2:48][O:49][CH3:50])[CH:43]=[C:42]([O:51][CH2:61][CH2:60][O:59][CH3:58])[CH:41]=2)[C:5]([C@@H:7]2[C@@H:12]([C:13]3[CH:14]=[CH:15][C:16]([O:19][CH2:20][CH2:21][O:22][C:23]4[C:28]([Cl:29])=[CH:27][C:26]([CH3:30])=[CH:25][C:24]=4[Cl:31])=[CH:17][CH:18]=3)[CH2:11][CH2:10][N:9]([C:32]([O:34][C:35]([CH3:38])([CH3:37])[CH3:36])=[O:33])[CH2:8]2)=[O:6])[CH2:3][CH2:2]1
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참가 물질

6

반응물 3

HCID 10796Cesium carbonateHCID 809722-Bromoethyl methyl etherHCID 68492454tert-Butyl (3R,4S)-3-({cyclopropyl[3-hydroxy-5-(3-methoxypropyl)benzyl]-amino}carbonyl)-4-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]phenyl}piperidine-1-carboxylate

생성물 1

HCID 86639854tert-butyl (3R,4S)-3-({cyclopropyl[3-(2-methoxyethoxy)-5-(3-methoxypropyl)benzyl]amino}carbonyl)-4-{4-[2-(2,6-dichloro-4-methylphenoxy)-ethoxy]phenyl}piperidine-1-carboxylate

시약·촉매·용매 2

HCID 6228Dimethylformamide용매HCID 8857Ethyl Acetate용매

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온도
80 °C

실험 절차

To a solution of tert-butyl (3R,4S)-3-({cyclopropyl[3-hydroxy-5-(3-methoxy-propyl)benzyl]amino}carbonyl)-4-{4-[2-(2,6-dichloro-4-methylphenoxy)ethoxy]-phenyl}piperidine-1-carboxylate (1 eq.) from the previous step in DMF (0.2 M) was added cesium carbonate (1.3 eq.) and 2-bromoethyl methyl ether (1.6 eq.). The reaction was heated to 80° C. and stirred for 3 h. After cooling to rt, the reaction was diluted with EtOAc. The organic extract was washed with water, brine, dried over MgSO4, and concentrated in vacuo. The crude product was purified by flash column chromatography (SiO2, 50%→65% EtOAc in Hex) to afford the title compound as an oil.

후처리

  1. temperatureAfter cooling to rt
  2. extractionThe organic extract
  3. washwas washed with water, brine
  4. dry with materialdried over MgSO4
  5. concentrationconcentrated in vacuo
  6. customThe crude product was purified by flash column chromatography (SiO2, 50%→65% EtOAc in Hex)

출처 및 근거

ORD 기록
ord-dc6e005092094741873071c7d7e25c4c
출처 데이터셋
uspto-grants-2011_12
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08076359B2

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