Water → Pyrrolidine-1,2-dicarboxylic acid 2-{2-[9-(2-bromo-acetyl)-5,7-dihydro-dibenzo[c,e]oxepin-3-yl]-2-oxo-ethyl}ester 1-tert-butyl ester

HRID 71707

반응식

HRID 71707 반응식
[C:1]([O:5][C:6]([N:8]1[CH2:12][CH2:11][CH2:10][CH:9]1[C:13]([O:15][CH2:16][C:17]([C:19]1[CH:20]=[CH:21][C:22]2[C:28]3[CH:29]=[CH:30][C:31](Br)=[CH:32][C:27]=3[CH2:26][O:25][CH2:24][C:23]=2[CH:34]=1)=[O:18])=[O:14])=[O:7])([CH3:4])([CH3:3])[CH3:2].C([Sn](CCCC)(CCCC)[CH:40]=[CH:41][O:42]CC)CCC.O.C1C(=O)N([Br:61])C(=O)C1>O1CCOCC1.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[C:1]([O:5][C:6]([N:8]1[CH2:12][CH2:11][CH2:10][CH:9]1[C:13]([O:15][CH2:16][C:17]([C:19]1[CH:20]=[CH:21][C:22]2[C:28]3[CH:29]=[CH:30][C:31]([C:41](=[O:42])[CH2:40][Br:61])=[CH:32][C:27]=3[CH2:26][O:25][CH2:24][C:23]=2[CH:34]=1)=[O:18])=[O:14])=[O:7])([CH3:4])([CH3:2])[CH3:3]

참가 물질

7

반응물 4

HCID 962WaterHCID 67184N-bromobutanimideHCID 2763294(Z)-1-Ethoxy-2-(tributylstannyl)etheneHCID 66620516Pyrrolidine-1,2-dicarboxylic acid 2-[2-(9-bromo-5,7-dihydro-dibenzo[c,e]oxepin-3-yl)-2-oxo-ethyl]ester 1-tert-butyl ester

생성물 1

HCID 72337884Pyrrolidine-1,2-dicarboxylic acid 2-{2-[9-(2-bromo-acetyl)-5,7-dihydro-dibenzo[c,e]oxepin-3-yl]-2-oxo-ethyl}ester 1-tert-butyl ester수율 90.3%

시약·촉매·용매 2

HCID 178418476HCID 178418476, 화합물촉매HCID 312751,4-Dioxane용매

반응 조건

온도
80 °C

실험 절차

To the solution of pyrrolidine-1,2-dicarboxylic acid 2-[2-(9-bromo-5,7-dihydro-dibenzo[c,e]oxepin-3-yl)-2-oxo-ethyl]ester 1-tert-butyl ester (160 mg, 0.30) and tributyl(ethoxyvinyl)stannane (112 μl, 0.33 mmol) in dioxane (2 ml) was added PdCl2(PPh3)2 (8 mg). The mixture was heated at 80° C. for 16 hours and was cooled to 0° C. Water (0.7 ml) was added, followed by slow addition of NBS (59, 0.33 mmol) over 5 minutes period. The mixture was stirred at 0° C. for additional 40 minutes, and the solvent was removed under reduced pressure. The mixture was diluted with EtOAc, and was washed with water and brine and dried with sodium sulfate. Concentration and purification by flash column chromatography (hexane/EtOAc) gave pyrrolidine-1,2-dicarboxylic acid 2-{2-[9-(2-bromo-acetyl)-5,7-dihydro-dibenzo[c,e]oxepin-3-yl]-2-oxo-ethyl}ester 1-tert-butyl ester (156 mg). m/z: 593.9 (M+Na)+.

후처리

  1. temperaturewas cooled to 0° C
  2. customthe solvent was removed under reduced pressure
  3. additionThe mixture was diluted with EtOAc
  4. washwas washed with water and brine
  5. dry with materialdried with sodium sulfate
  6. concentrationConcentration and purification by flash column chromatography (hexane/EtOAc)

출처 및 근거

ORD 기록
ord-43afa093794a4fda9e76d923b6dde660
출처 데이터셋
uspto-grants-2014_09
특허 번호
US08822430B2

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