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1,1'-Carbonyldiimidazole → tert-butyl [(1R,2S)-2-ethenyl-1-{[(1-methylcyclopropyl)sulfonyl]carbamoyl}cyclopropyl]carbamate

HRID 1481641
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HRID 1481641 반응식
[C:1]([O:5][C:6]([NH:8][C@:9]1([C:14]([OH:16])=O)[CH2:11][C@H:10]1[CH:12]=[CH2:13])=[O:7])([CH3:4])([CH3:3])[CH3:2].C1N=CN(C(N2C=NC=C2)=O)C=1.[CH3:29][C:30]1([S:33]([NH2:36])(=[O:35])=[O:34])[CH2:32][CH2:31]1.C1CCN2C(=NCCC2)CC1>C1COCC1>[C:1]([O:5][C:6](=[O:7])[NH:8][C@:9]1([C:14](=[O:16])[NH:36][S:33]([C:30]2([CH3:29])[CH2:32][CH2:31]2)(=[O:35])=[O:34])[CH2:11][C@H:10]1[CH:12]=[CH2:13])([CH3:2])([CH3:3])[CH3:4]
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참가 물질

6

반응물 4

HCID 682631,1'-CarbonyldiimidazoleHCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 10376443(1R,2S)-1-(((1,1-Dimethylethoxy)carbonyl)amino)-2-ethenylcyclopropanecarboxylic acidHCID 218898141-Methylcyclopropane-1-sulfonamide

생성물 1

HCID 56605353tert-butyl [(1R,2S)-2-ethenyl-1-{[(1-methylcyclopropyl)sulfonyl]carbamoyl}cyclopropyl]carbamate수율 58.1%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

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온도
85 °C

실험 절차

To a solution of (1R,2S)-1-(tert-butoxycarbonylamino)-2-vinylcyclopropanecarboxylic acid (25 g, 110 mmol) in THF (300 mL) was added CDI (205 g, 127 mmol) and the reaction mass was heated at 85° C. for 1 h. The reaction mass was cooled to rt and to this reaction mass was added 1-methylcyclopropane-1-sulfonamide (17.7 g, 131 mmol) followed by DBU (33.2 mL, 33.5 mmol). The reaction mixture was stirred at rt for 18 h. The solvent was evaporated under reduced pressure and the residue was diluted with water and acidified to pH˜2 by using aq. 1.5 N HCl solution. The precipitated solid was isolated via filtration and washed with water to get desired compound (22 g, 58%) as off-white solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 11.01-11.17 (m, 1H), 7.17-7.33 (m, 1H), 5.35-5.51 (m, 1H), 5.18-5.29 (m, 1H), 4.99-5.09 (m, 1H), 2.21 (s, 1H), 1.69 (dd, J=7.78, 5.27 Hz, 1H), 1.40 (d, J=3.01 Hz, 14H), 1.20 (dd, J=9.29, 5.27 Hz, 1H), 0.82-0.96 (m, 2H). MS: MS m/z 343 (M++1).

후처리

  1. temperatureThe reaction mass was cooled to rt and to this reaction mass
  2. customThe solvent was evaporated under reduced pressure
  3. additionthe residue was diluted with water
  4. customThe precipitated solid was isolated via filtration
  5. washwashed with water

출처 및 근거

ORD 기록
ord-35dbc0688652479292e2cf8e7b0beaa7
출처 데이터셋
uspto-grants-2016_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09409943B2

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