Sulfuric Acid → 6-(4-methoxy-phenyl)-2-(6-methoxy-pyridin-3-ylamino)-8-phenyl-5,8-dihydro-6H-pyrido[2,3-d]pyrimidine-7-one

HRID 11794

반응식

HRID 11794 반응식
CO[C:3](=[O:36])[CH:4]([C:28]1[CH:33]=[CH:32][C:31]([O:34][CH3:35])=[CH:30][CH:29]=1)[CH2:5][C:6]1[C:7]([NH:21][C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)=[N:8][C:9]([NH:12][C:13]2[CH:14]=[N:15][C:16]([O:19][CH3:20])=[CH:17][CH:18]=2)=[N:10][CH:11]=1.S(=O)(=O)(O)O>C(O)(=O)C.C(OCC)(=O)C>[CH3:35][O:34][C:31]1[CH:32]=[CH:33][C:28]([CH:4]2[C:3](=[O:36])[N:21]([C:22]3[CH:23]=[CH:24][CH:25]=[CH:26][CH:27]=3)[C:7]3[N:8]=[C:9]([NH:12][C:13]4[CH:14]=[N:15][C:16]([O:19][CH3:20])=[CH:17][CH:18]=4)[N:10]=[CH:11][C:6]=3[CH2:5]2)=[CH:29][CH:30]=1

참가 물질

5

반응물 2

HCID 1118Sulfuric AcidHCID 210443183-[2-(6-Methoxy-pyridin-3-ylamino)-4-phenylamino-pyrimidin-5-yl]-2-(4-methoxy-phenyl)-propionic acid methyl ester

생성물 1

HCID 100269256-(4-methoxy-phenyl)-2-(6-methoxy-pyridin-3-ylamino)-8-phenyl-5,8-dihydro-6H-pyrido[2,3-d]pyrimidine-7-one

시약·촉매·용매 2

HCID 176Acetic Acid용매HCID 8857Ethyl Acetate용매

반응 조건

온도
80 °C

실험 절차

To a solution of 3-[2-(6-methoxy-pyridin-3-ylamino)-4-phenylamino-pyrimidin-5-yl]-2-(4-methoxy-phenyl)-propionic acid methyl ester (45.0 mg, 0.09 mmol) (from Example 12c supra) in glacial acetic acid (1 mL) was added concentrated sulfuric acid (0.1 mL) in one portion. After heating at 80° C. for 3 hours, the reaction mixture was diluted with ethyl acetate (50 mL) and quenched with 2 N aqueous sodium hydroxide solution. The organic layer was separated and successively washed with water (10 mL) and brine (10 mL), dried over anhydrous sodium sulfate, filtered, and concentrated in vacuo to give the crude product. The crude product was purified by preparative thin layer chromatography to give 6-(4-methoxy-phenyl)-2-(6-methoxy-pyridin-3-ylamino)-8-phenyl-5,8-dihydro-6H-pyrido[2,3-d]pyrimidine-7-one as brown powder. (Yield 5.2 mg, 12.4%).

후처리

  1. customquenched with 2 N aqueous sodium hydroxide solution
  2. customThe organic layer was separated
  3. washsuccessively washed with water (10 mL) and brine (10 mL)
  4. dry with materialdried over anhydrous sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customto give the crude product
  8. customThe crude product was purified by preparative thin layer chromatography

출처 및 근거

ORD 기록
ord-0cc76f6a46d14480921745d16f372339
출처 데이터셋
uspto-grants-2006_08
특허 번호
US07098332B2

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