Toluene → (E)-N-[4-[(3-chloro-4-fluoro-phenyl)amino]-7-ethoxy-quinazolin-6-yl]-3-[(2S)-1-methylpyrrolidin-2-yl]prop-2-enamide

HRID 1397065노트

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HRID 1397065 반응식
[Cl:1][C:2]1[CH:3]=[C:4]([NH:9][C:10]2[C:19]3[C:14](=[CH:15][C:16]([O:32][CH2:33][CH3:34])=[C:17]([NH:20][C:21](=[O:31])[CH2:22]P(OCC)(OCC)=O)[CH:18]=3)[N:13]=[CH:12][N:11]=2)[CH:5]=[CH:6][C:7]=1[F:8].C[Si]([N-][Si](C)(C)C)(C)C.[Li+].C1(C)C=CC=CC=1.[CH3:52][N:53]1[CH2:57][CH2:56][CH2:55][C@H:54]1[CH:58]=O>O1CCCC1.CO.O>[Cl:1][C:2]1[CH:3]=[C:4]([NH:9][C:10]2[C:19]3[C:14](=[CH:15][C:16]([O:32][CH2:33][CH3:34])=[C:17]([NH:20][C:21](=[O:31])/[CH:22]=[CH:58]/[C@@H:54]4[CH2:55][CH2:56][CH2:57][N:53]4[CH3:52])[CH:18]=3)[N:13]=[CH:12][N:11]=2)[CH:5]=[CH:6][C:7]=1[F:8]

참가 물질

8

반응물 4

HCID 1140TolueneHCID 2733832Lithium HexamethyldisilazideHCID 53829761(2S)-1-methylpyrrolidine-2-carbaldehydeHCID 86667264N-[4-[(3-chloro-4-fluoro-phenyl)amino]-7-ethoxy-quinazolin-6-yl]-2-diethoxyphosphoryl-acetamide

생성물 1

HCID 51039031(E)-N-[4-[(3-chloro-4-fluoro-phenyl)amino]-7-ethoxy-quinazolin-6-yl]-3-[(2S)-1-methylpyrrolidin-2-yl]prop-2-enamide수율 65.2%

시약·촉매·용매 3

HCID 887Methanol용매HCID 962Water용매HCID 8028Tetrahydrofuran용매

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온도
-78 °C

실험 절차

N-[4-[(3-Chloro-4-fluoro-phenyl)amino]-7-ethoxy-quinazolin-6-yl]-2-diethoxyphosphoryl-acetamide 7b (100 mg, 0.20 mmol) was dissolved in 10 mL of tetrahydrofuran. The mixture was cooled to −78° C. in a dry ice bath, followed by dropwise addition of a solution of lithium bis(trimethylsilyl)amide (1 M) in toluene (400 μL, 0.40 mmol), and the mixture was stirred for 45 minutes, added with (2S)-1-methylpyrrolidine-2-carbaldehyde 1b (100 mg, 0.85 mmol). After stirring for another 1 hour, the reaction mixture was warmed up to room temperature and stirred for 12 hours. The reaction mixture was added with water (1 mL) and methanol (1 mL), extracted with dichloromethane (100 mL×3). The combined organic extracts were washed with saturated brine (30 mL×2), dried over anhydrous sodium sulfate, filtered and the filtrate was concentrated under reduced pressure, then the resulting residue was purified by silica gel column chromatography with elution system A to obtain the title compound (E)-N-[4-[(3-chloro-4-fluoro-phenyl)amino]-7-ethoxy-quinazolin-6-yl]-3-[(2S)-1-methylpyrrolidin-2-yl]prop-2-enamide 7 (60 mg, yield 65.2%) as a yellow solid.

후처리

  1. stirringAfter stirring for another 1 hour
  2. temperaturethe reaction mixture was warmed up to room temperature
  3. stirringstirred for 12 hours
  4. extractionextracted with dichloromethane (100 mL×3)
  5. washThe combined organic extracts were washed with saturated brine (30 mL×2)
  6. dry with materialdried over anhydrous sodium sulfate
  7. filtrationfiltered
  8. concentrationthe filtrate was concentrated under reduced pressure
  9. customthe resulting residue was purified by silica gel column chromatography with elution system

출처 및 근거

ORD 기록
ord-db60f42f78e744a182ec95e52f094d99
출처 데이터셋
uspto-grants-2014_12
특허 번호
US08901140B2

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