Water → (8-Ethyl-7-imino-6-thiophen-3-yl-7,8-dihydro-pyrido[2,3-d]pyrimidin-2-yl)-phenylamine

HRID 3224

반응식

HRID 3224 반응식
[H-].[Na+].[S:3]1[CH:7]=[CH:6][C:5]([CH2:8][C:9]#[N:10])=[CH:4]1.[CH2:11]([NH:13][C:14]1[C:19]([CH:20]=O)=[CH:18][N:17]=[C:16]([NH:22][C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)[N:15]=1)[CH3:12].O>C(OCCO)C>[CH2:11]([N:13]1[C:14]2[N:15]=[C:16]([NH:22][C:23]3[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=3)[N:17]=[CH:18][C:19]=2[CH:20]=[C:8]([C:5]2[CH:6]=[CH:7][S:3][CH:4]=2)[C:9]1=[NH:10])[CH3:12]

참가 물질

6

반응물 4

HCID 962WaterHCID 24758Sodium hydrideHCID 837303-ThienylacetonitrileHCID 108240804-Ethylamino-2-phenylamino-pyrimidine-5-carbaldehyde

생성물 1

HCID 10736433(8-Ethyl-7-imino-6-thiophen-3-yl-7,8-dihydro-pyrido[2,3-d]pyrimidin-2-yl)-phenylamine수율 78.9%

시약·촉매·용매 1

HCID 8076Glycol monoethyl ether용매

실험 절차

To a suspension of NaH (60% in mineral oil, 27 mg) in 5 mL of 2-ethoxyethanol was added 3-thiopheneacetonitrile (168 mg, 1.36 mmol). After stirring for 5 minutes at room temperature, 4-ethylamino-2-phenylamino-pyrimidine-5-carbaldehyde (300 mg, 1.24 mmol) was added, and the reaction heated at 120° C. for 2 hours, resulting in a dark brown solution. Upon cooling, the solution was poured into water which caused precipitation. The resulting precipitate was removed by filtration and washed with water. The crude product was purified by flash chromatography, eluting with 5% methanol/methylene chloride, followed by 10% methanol/methylene chloride. Concentration of product fractions yielded 340 mg (78%) of (8-ethyl-7-imino-6-thiophen-3-yl-7,8-dihydro-pyrido[2,3-d]pyrimidin-2-yl)-phenylamine; mp 220°-222° C.

후처리

  1. temperaturethe reaction heated at 120° C. for 2 hours
  2. customresulting in a dark brown solution
  3. temperatureUpon cooling
  4. customprecipitation
  5. customThe resulting precipitate was removed by filtration
  6. washwashed with water
  7. customThe crude product was purified by flash chromatography
  8. washeluting with 5% methanol/methylene chloride

출처 및 근거

ORD 기록
ord-5ac9e9c1c2b44b098f10a1ddc3f11428
출처 데이터셋
uspto-grants-1998_03
특허 번호
US05733914

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