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Water → 3-[1-(6,7-Dimethoxy-4-quinazolinyl)-4-piperidinyl]-1,2,3,4-tetrahydro-6-nitro-2,4-dioxoquinazoline

HRID 2257752
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HRID 2257752 반응식
Br.[N+:2]([C:5]1[CH:6]=[C:7]2[C:12](=[CH:13][CH:14]=1)[NH:11][C:10](=[O:15])[N:9]([CH:16]1[CH2:21][CH2:20][NH:19][CH2:18][CH2:17]1)[C:8]2=[O:22])([O-:4])=[O:3].Cl[C:24]1[C:33]2[C:28](=[CH:29][C:30]([O:36][CH3:37])=[C:31]([O:34][CH3:35])[CH:32]=2)[N:27]=[CH:26][N:25]=1.C(=O)([O-])[O-].[K+].[K+].O>CN(C=O)C>[CH3:35][O:34][C:31]1[CH:32]=[C:33]2[C:28](=[CH:29][C:30]=1[O:36][CH3:37])[N:27]=[CH:26][N:25]=[C:24]2[N:19]1[CH2:18][CH2:17][CH:16]([N:9]2[C:8](=[O:22])[C:7]3[C:12](=[CH:13][CH:14]=[C:5]([N+:2]([O-:4])=[O:3])[CH:6]=3)[NH:11][C:10]2=[O:15])[CH2:21][CH2:20]1
참가 물질반응 조건실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 27693644-Chloro-6,7-dimethoxyquinazolineHCID 229235601,2,3,4-Tetrahydro-6-nitro-2,4-dioxo-3-(4-piperidinyl)-quinazoline hydrobromide

생성물 1

HCID 229233993-[1-(6,7-Dimethoxy-4-quinazolinyl)-4-piperidinyl]-1,2,3,4-tetrahydro-6-nitro-2,4-dioxoquinazoline수율 85%

시약·촉매·용매

1
HCID 6228Dimethylformamide용매

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온도
80 °C

실험 절차

In 150 ml of DMF was dissolved 3.0 g (8.09 mmol) of 1,2,3,4-tetrahydro-6-nitro-2,4-dioxo-3-(4-piperidinyl)-quinazoline hydrobromide, and 1.7 g (8.09 mmol) of 4-chloro-6,7-dimethoxyquinazoline and 1.1 g (24 mmol) of potassium carbonate were added to the solution, followed by heating at 80° C. for 2 hours. Water was added to the reaction mixture, and the mixture was extracted with chloroform. The organic layer was washed with an aqueous solution of sodium chloride and dried. After the solvent was distilled off, ethanol and ether were added to the residue. The precipitated crystals were collected by filtration and washed with ether to give 3.28 g (yield: 85%) of Compound 24 as white crystals.

후처리

  1. additionwere added to the solution
  2. extractionthe mixture was extracted with chloroform
  3. washThe organic layer was washed with an aqueous solution of sodium chloride
  4. customdried
  5. distillationAfter the solvent was distilled off
  6. additionethanol and ether were added to the residue
  7. filtrationThe precipitated crystals were collected by filtration
  8. washwashed with ether

출처 및 근거

ORD 기록
ord-5a179116630846c196c04939d040111f
출처 데이터셋
uspto-grants-1997_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05658917

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