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Sodium Hydroxide → 2-(4-Benzylpiperazino)-6-ethyl-5-oxo-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine

HRID 569991
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HRID 569991 반응식
S(O)(O)(=O)=O.[C:6]([N:9]1[CH2:14][CH2:13][N:12]([CH2:15][C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[CH2:11][CH2:10]1)(=[NH:8])[NH2:7].[OH-].[Na+].[CH2:24]([N:26]1[CH2:31][CH2:30][C:29](=O)[C:28](=[CH:33]OC)[C:27]1=[O:36])[CH3:25]>C(O)C>[CH2:15]([N:12]1[CH2:13][CH2:14][N:9]([C:6]2[N:7]=[CH:33][C:28]3[C:27](=[O:36])[N:26]([CH2:24][CH3:25])[CH2:31][CH2:30][C:29]=3[N:8]=2)[CH2:10][CH2:11]1)[C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 3

HCID 14798Sodium HydroxideHCID 27566524-Benzylpiperazine-1-carboxamidine hemisulfateHCID 540921521-Ethyl-3-methoxymethylenepiperidine-2,4-dione

생성물 1

HCID 137841212-(4-Benzylpiperazino)-6-ethyl-5-oxo-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine수율 80.8%

시약·촉매·용매 1

HCID 702Ethanol용매

실험 절차

To a suspension which had been obtained by adding 1.56 g of 1-amidino-4-benzylpiperazine sulfate to an ethanol solution of 0.23 g of sodium hydroxide, 1.07 g of 1-ethyl-3-methoxymethylenepiperidine-2,4-dione (Referential Example 37) was added. The resultant mixture was refluxed for 2 hours. After distilling off ethanol, water was added to the residue, followed by extraction with chloroform. After drying the chloroform layer, it was concentrated to obtain 1.4 g of 2-(4-benzylpiperazino)-6-ethyl-5-oxo-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine (yield: 69%).

후처리

  1. customTo a suspension which had been obtained
  2. additionwas added
  3. distillationAfter distilling off ethanol, water
  4. additionwas added to the residue
  5. extractionfollowed by extraction with chloroform
  6. dry with materialAfter drying the chloroform layer, it
  7. concentrationwas concentrated

출처 및 근거

ORD 기록
ord-9801a83f8e1a42d89eafa66ceaa379e3
출처 데이터셋
uspto-grants-1988_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04734418

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