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

HRID 1791598ノート

反応式

HRID 1791598 の反応式
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]

参加物

3

反応物 2

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

生成物 1

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

実験手順

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%).

後処理

  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

出典と根拠

ORDレコード
ord-4d3b8a10f745466aafe4a2248ae64a91
出典データセット
uspto-grants-2006_07
特許番号
US07074800B1

反応ノート

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