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

HRID 11796
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HRID 11796 반응식
C[O:2][C:3](=O)[CH:4]([C:24]1[CH:29]=[CH:28][C:27]([O:30][CH3:31])=[CH:26][CH:25]=1)[CH2:5][C:6]1[C:7]([NH:19][CH2:20][CH:21]([CH3:23])[CH3:22])=[N:8][C:9]([NH:12][C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)=[N:10][CH:11]=1.S(=O)(=O)(O)O>C(O)(=O)C.C(OCC)(=O)C>[CH2:20]([N:19]1[C:7]2[N:8]=[C:9]([NH:12][C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=3)[N:10]=[CH:11][C:6]=2[CH2:5][CH:4]([C:24]2[CH:25]=[CH:26][C:27]([O:30][CH3:31])=[CH:28][CH:29]=2)[C:3]1=[O:2])[CH:21]([CH3:22])[CH3:23]
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참가 물질

5

반응물 2

HCID 1118Sulfuric AcidHCID 210443113-(2-Phenylamino-4-isobutylamino-pyrimidin-5-yl)-2-(4-methoxy-phenyl)-propionic acid methyl ester

생성물 1

HCID 103863918-isobutyl-6-(4-methoxy-phenyl)-2-phenylamino-5,8-dihydro-6H-pyrido[2,3-d]pyrimidine-7-one

시약·촉매·용매 2

HCID 176Acetic Acid용매HCID 8857Ethyl Acetate용매

반응 조건

온도
85 °C

실험 절차

To the solution of 3-(2-phenylamino-4-isobutylamino-pyrimidin-5-yl)-2-(4-methoxy-phenyl)-propionic acid methyl ester (17.1 mg, 0.04 mmol) in glacial acetic acid (1 mL) was added concentrated sulfuric acid (0.1 mL) in one portion. The reaction mixture was heated at 85° C. overnight. After cooling, 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 8-isobutyl-6-(4-methoxy-phenyl)-2-phenylamino-5,8-dihydro-6H-pyrido[2,3-d]pyrimidine-7-one as a brown solid. (14.3 mg, 90.5%). HRMS m/z Calcd for C24H26N4O2 [(M+H)+]: 403.2129. Found: 403.2131.

후처리

  1. temperatureAfter cooling
  2. customquenched with 2 N aqueous sodium hydroxide solution
  3. customThe organic layer was separated
  4. washsuccessively washed with water (10 mL) and brine (10 mL)
  5. dry with materialdried over anhydrous sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo

출처 및 근거

ORD 기록
ord-3442685734594738948d4f348ffe24c3
출처 데이터셋
uspto-grants-2006_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07098332B2

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