Piperidine → 6-Methoxy-7-(3-piperidinopropoxy)-3-((pivaloyloxy)methyl)-3,4-dihydroquinazolin-4-one

HRID 1791598노트

반응식

HRID 1791598 반응식
Br[CH2:2][CH2:3][CH2:4][O:5][C:6]1[CH:15]=[C:14]2[C:9]([C:10](=[O:24])[N:11]([CH2:16][O:17][C:18](=[O:23])[C:19]([CH3:22])([CH3:21])[CH3:20])[CH:12]=[N:13]2)=[CH:8][C:7]=1[O:25][CH3:26].[NH:27]1[CH2:32][CH2:31][CH2:30][CH2:29][CH2:28]1>>[CH3:26][O:25][C:7]1[CH:8]=[C:9]2[C:14](=[CH:15][C:6]=1[O:5][CH2:4][CH2:3][CH2:2][N:27]1[CH2:32][CH2:31][CH2:30][CH2:29][CH2:28]1)[N:13]=[CH:12][N:11]([CH2:16][O:17][C:18](=[O:23])[C:19]([CH3:22])([CH3:21])[CH3:20])[C:10]2=[O:24]

참가 물질

3

반응물 2

HCID 8082PiperidineHCID 218748177-(3-Bromopropoxy)-6-methoxy-3-((pivaloyloxy)methyl)-3,4-dihydroquinazolin-4-one

생성물 1

HCID 218748076-Methoxy-7-(3-piperidinopropoxy)-3-((pivaloyloxy)methyl)-3,4-dihydroquinazolin-4-one수율 83%

실험 절차

A solution of 7-(3-bromopropoxy)-6-methoxy-3-((pivaloyloxy)methyl)-3,4-dihydroquinazolin-4-one (2.89 g, 6.78 mmol) in piperidine (100 ml) was heated at 100° C. for 1 hour. After cooling, the volatiles were removed under vacuum. The residue was dissolved in methylene chloride, and washed with saturated ammonium chloride and brine. The organic layer was dried (MgSO4) and the volatiles were removed by evaporation. The residue was dried under vacuum to give 6-methoxy-7-(3-piperidinopropoxy)-3-((pivaloyloxy)methyl)-3,4-dihydroquinazolin-4-one (2.4 g, 83%).

후처리

  1. temperatureAfter cooling
  2. customthe volatiles were removed under vacuum
  3. dissolutionThe residue was dissolved in methylene chloride
  4. washwashed with saturated ammonium chloride and brine
  5. dry with materialThe organic layer was dried (MgSO4)
  6. customthe volatiles were removed by evaporation
  7. customThe residue was dried under vacuum

출처 및 근거

ORD 기록
ord-4d3b8a10f745466aafe4a2248ae64a91
출처 데이터셋
uspto-grants-2006_07
특허 번호
US07074800B1

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