Benzyl chloroformate → 1-Benzyloxycarbonyl-4-(S)-(1-ethoxycarbonylcyclopropyl)-3-(S)-fluoropyrrolidine

HRID 635105노트

반응식

HRID 635105 반응식
[CH2:1]([O:3][C:4]([C:6]1([C@H:9]2[CH2:13][N:12]([C@H](C3C=CC=CC=3)C)[CH2:11][C@H:10]2[F:22])[CH2:8][CH2:7]1)=[O:5])[CH3:2].Cl[C:24]([O:26][CH2:27][C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1)=[O:25]>ClCCl>[CH2:27]([O:26][C:24]([N:12]1[CH2:13][C@H:9]([C:6]2([C:4]([O:3][CH2:1][CH3:2])=[O:5])[CH2:8][CH2:7]2)[C@H:10]([F:22])[CH2:11]1)=[O:25])[C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1

참가 물질

4

반응물 2

HCID 10387Benzyl chloroformateHCID 109687574-(S)-(1Ethoxycarbonylcyclopropyl)-3-(S)-fluoro-1-[1-(S)-phenylethyl]pyrrolidine

생성물 1

HCID 110350361-Benzyloxycarbonyl-4-(S)-(1-ethoxycarbonylcyclopropyl)-3-(S)-fluoropyrrolidine수율 83.7%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

4-(S)-(1-Ethoxycarbonylcyclopropyl)-3-(S)-fluoro-1-(1-(S)-phenylethyl]pyrrolidine (5.08 g, 16.63 mmol) was dissolved in dry dichloromethane (50 ml). Under ice cooling, benzyl chloroformate (3.56 ml, 25.0 mmol) was added dropwise into this solution. Then the liquid reaction mixture was heated under reflux for 1 hour and dichioromethane was evaporated under reduced pressure. The residue was subjected. to flash silica gel column chromatography (eluent: n-hexane:ethyl acetate=3:1) to obtain 4.67 g (83.7%) of the title compound as a colorless oily substance.

후처리

  1. customThen the liquid reaction mixture
  2. temperaturewas heated
  3. temperatureunder reflux for 1 hour
  4. customdichioromethane was evaporated under reduced pressure

출처 및 근거

ORD 기록
ord-42cff8cd194040a9b8ad4c7e0533a4bc
출처 데이터셋
uspto-grants-2001_02
특허 번호
US06184388B2

반응 노트

불러오는 중…