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Pyridine → rac-(3R*,5S*)-3-chloro-5-(2,6-dimethoxyphenyl)-1-(4-(trifluoromethoxy)benzyl)pyrrolidin-2-one

HRID 594401
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HRID 594401 반응식
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][CH:6]=[C:5]([O:9][CH3:10])[C:4]=1[CH:11]1[N:15]([CH2:16][C:17]2[CH:22]=[CH:21][C:20]([O:23][C:24]([F:27])([F:26])[F:25])=[CH:19][CH:18]=2)[C:14](=[O:28])[CH:13](O)[CH2:12]1.O=S(Cl)[Cl:32].N1C=CC=CC=1>O1CCOCC1>[Cl:32][CH:13]1[CH2:12][CH:11]([C:4]2[C:3]([O:2][CH3:1])=[CH:8][CH:7]=[CH:6][C:5]=2[O:9][CH3:10])[N:15]([CH2:16][C:17]2[CH:22]=[CH:21][C:20]([O:23][C:24]([F:27])([F:26])[F:25])=[CH:19][CH:18]=2)[C:14]1=[O:28]
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참가 물질

5

반응물 3

HCID 1049PyridineHCID 24386Thionyl ChlorideHCID 69082591rac-(3S*,5S*)-5-(2,6-dimethoxyphenyl)-3-hydroxy-1-(4-(trifluoromethoxy)benzyl)pyrrolidin-2-one

생성물 1

HCID 69081638rac-(3R*,5S*)-3-chloro-5-(2,6-dimethoxyphenyl)-1-(4-(trifluoromethoxy)benzyl)pyrrolidin-2-one

시약·촉매·용매 1

HCID 312751,4-Dioxane용매

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온도
80 °C

실험 절차

A solution of rac-(3S*,5S*)-5-(2,6-dimethoxyphenyl)-3-hydroxy-1-(4-(trifluoromethoxy)-benzyl)pyrrolidin-2-one (200 mg; 0.48 mmol) in dioxane (1 ml) was treated at rt successively with SOCl2 (69 mg; 0.58 mmol) and pyridine (46 mg; 0.58 mmol). The resulting mixture was then heated to 80° C. for 3 h. After cooling to rt, the mixture was concentrated under reduced pressure before water and AcOEt were added. The separated organic layer was washed with brine, dried over anh. MgSO4, filtered, and concentrated to dryness under reduced pressure. Purification by FC (DCM/MeOH=50/1) afforded rac-(3R*,5S*)-3-chloro-5-(2,6-dimethoxyphenyl)-1-(4-(trifluoromethoxy)benzyl)pyrrolidin-2-one as a pale yellow solid. LC-MS (conditions A): tR=0.95 min.; [M+H]+: 430.20 g/mol.

후처리

  1. temperatureAfter cooling to rt
  2. concentrationthe mixture was concentrated under reduced pressure before water and AcOEt
  3. additionwere added
  4. washThe separated organic layer was washed with brine
  5. dry with materialdried over anh. MgSO4
  6. filtrationfiltered
  7. concentrationconcentrated to dryness under reduced pressure
  8. customPurification by FC (DCM/MeOH=50/1)

출처 및 근거

ORD 기록
ord-c4ff4f5e366f401faa452660eecdbda0
출처 데이터셋
uspto-grants-2016_01
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US09242970B2

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