Water → HCID 10392180, 화합물

HRID 1708551노트

반응식

HRID 1708551 반응식
C(Cl)Cl.[F:4][C:5]1[CH:6]=[C:7]2[C:12](=[C:13]([F:16])[C:14]=1[F:15])[N:11]([NH:17][CH3:18])[CH:10]=[C:9]([C:19]([O:21][CH2:22][CH3:23])=[O:20])[C:8]2=[O:24].[C:25]([O:29][C:30]([C:32](=[CH2:40])[C:33]([O:35][C:36]([CH3:39])([CH3:38])[CH3:37])=[O:34])=[O:31])([CH3:28])([CH3:27])[CH3:26].O>C(OCC)(=O)C.[Ti](Cl)(Cl)(Cl)Cl>[F:4][C:5]1[CH:6]=[C:7]2[C:12](=[C:13]([F:16])[C:14]=1[F:15])[N:11]([N:17]([CH3:18])[CH2:40][CH:32]([C:30]([O:29][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:31])[C:33]([O:35][C:36]([CH3:39])([CH3:38])[CH3:37])=[O:34])[CH:10]=[C:9]([C:19]([O:21][CH2:22][CH3:23])=[O:20])[C:8]2=[O:24]

참가 물질

7

반응물 4

HCID 962WaterHCID 6344DichloromethaneHCID 11096368Propanedioic acid, methylene-, bis(1,1-dimethylethyl) esterHCID 11098599Ethyl 6,7,8-trifluoro-1-(methylamino)-4-oxo-1,4-dihydroquinoline-3-carboxylate

생성물 1

HCID 10392180HCID 10392180, 화합물수율 56.1%

시약·촉매·용매 2

HCID 24193Titanium Tetrachloride촉매HCID 8857Ethyl Acetate용매

실험 절차

Methylene chloride (10 ml) solution of ethyl 6,7,8-trifluoro-1-methylamino-1,4-dihydro-4-oxoquinoline-3-carboxylate (1.0 g) and tert-butyl 2-tert-butoxycarbonylacrylate (1.52 g) was cooled in an ice bath in nitrogen atmosphere, and titanium tetrachloride (632.4 mg) was dropwise added thereto. After 30 minutes, this was diluted with ethyl acetate (100 ml) and then with water (100 ml). The organic layer was separated out, washed with water (2×50 ml), dried over magnesium sulfate and concentrated under reduced pressure to obtain an yellow syrup product. The syrup product was subjected to column chromatography with silica gel and eluted with a mixed solvent of methylene chloride/ethyl acetate (10/1) to obtain ethyl 6,7,8-trifluoro-1-[N-methyl-N-{2,2-bis(tert-butoxycarbonyl)ethyl}amino]-1,4-dihydro-4-oxoquinoline-3-carboxylate (988 mg), as a white solid.

후처리

  1. additionwas dropwise added
  2. customThe organic layer was separated out
  3. washwashed with water (2×50 ml)
  4. dry with materialdried over magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customto obtain an yellow syrup product
  7. washeluted with a mixed solvent of methylene chloride/ethyl acetate (10/1)

출처 및 근거

ORD 기록
ord-2a9a0b77e8084c59bf48c3d434d1bd46
출처 데이터셋
uspto-grants-1994_10
특허 번호
US05359066

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