L-Methionine → 2-(3-fluoro-4-(phenyl)phenyl)-6-hydroxy-7-methoxyquinazolin-4(3H)-one

HRID 1808469노트

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HRID 1808469 반응식
[F:1][C:2]1[CH:3]=[C:4]([C:14]2[NH:23][C:22](=[O:24])[C:21]3[C:16](=[CH:17][C:18]([O:27][CH3:28])=[C:19]([O:25]C)[CH:20]=3)[N:15]=2)[CH:5]=[CH:6][C:7]=1[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1.N[C@H](C(O)=O)CCSC>CS(O)(=O)=O>[F:1][C:2]1[CH:3]=[C:4]([C:14]2[NH:23][C:22](=[O:24])[C:21]3[C:16](=[CH:17][C:18]([O:27][CH3:28])=[C:19]([OH:25])[CH:20]=3)[N:15]=2)[CH:5]=[CH:6][C:7]=1[C:8]1[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=1

참가 물질

4

반응물 2

HCID 6137L-Methionine2회HCID 1362032412-(3-fluoro-4-(phenyl)phenyl)-6,7-dimethoxyquinazolin-4(3H)-one

생성물 1

HCID 1362032402-(3-fluoro-4-(phenyl)phenyl)-6-hydroxy-7-methoxyquinazolin-4(3H)-one수율 87%

시약·촉매·용매 1

HCID 6395Methanesulfonic Acid용매

반응 조건

온도
110 °C

실험 절차

A mixture of 2-(3-fluoro-4-(phenyl)phenyl)-6,7-dimethoxyquinazolin-4(3H)-one (3.83 g, 10.2 mmol) and methionine (2.1 g, 14.1 mmol) in methanesulfonic acid was heated 110° C. for 4 h. Additional methionine (0.75 g) was added and heating was continued for another 1.5 h. The mixture was allowed to cool to RT and was poured into ice-water (300 mL). A solid separated out, which was collected via filtration. The solid was suspended in sat. NaHCO3 and the after the effervescence subsided the solid was again collected via filtration. The solid was washed with water and EtOH to give the desired product 2-(3-fluoro-4-(phenyl)phenyl)-6-hydroxy-7-methoxyquinazolin-4(3H)-one (3.2 g, 8.83 mmol, 87%). HPLC retention time 7.06 mins.

후처리

  1. temperatureheating
  2. temperatureto cool to RT
  3. customA solid separated out
  4. filtrationwhich was collected via filtration
  5. filtrationwas again collected via filtration
  6. washThe solid was washed with water and EtOH

출처 및 근거

ORD 기록
ord-a59abcc38047468c838bd1a33941bf45
출처 데이터셋
uspto-grants-2013_01
특허 번호
US08357693B2

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