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Hexane → 1-Methyl-5-(5-morpholinomethyl-2-n-propoxyphenyl)-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one

HRID 21938
ノート
印刷プレビュー

反応式

HRID 21938 の反応式
Cl[CH2:2][C:3]1[CH:4]=[CH:5][C:6]([O:23][CH2:24][CH2:25][CH3:26])=[C:7]([C:9]2[NH:10][C:11](=[O:22])[C:12]3[N:17]([CH3:18])[N:16]=[C:15]([CH2:19][CH2:20][CH3:21])[C:13]=3[N:14]=2)[CH:8]=1.[NH:27]1[CH2:32][CH2:31][O:30][CH2:29][CH2:28]1.CCCCCC>CC(=O)CC>[CH3:18][N:17]1[C:12]2[C:11](=[O:22])[NH:10][C:9]([C:7]3[CH:8]=[C:3]([CH2:2][N:27]4[CH2:32][CH2:31][O:30][CH2:29][CH2:28]4)[CH:4]=[CH:5][C:6]=3[O:23][CH2:24][CH2:25][CH3:26])=[N:14][C:13]=2[C:15]([CH2:19][CH2:20][CH3:21])=[N:16]1
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 8058HexaneHCID 8083MorpholineHCID 1361162095-(5-Chloromethyl-2-n-propoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo-[4,3-d]pyrimidin-7-one

生成物 1

HCID 1361601131-Methyl-5-(5-morpholinomethyl-2-n-propoxyphenyl)-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one収率 53%

試薬・触媒・溶媒 1

HCID 6569Methyl Ethyl Ketone
溶媒
2 回

実験手順

A solution of 5-(5-chloromethyl-2-n-propoxyphenyl)-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one (Preparation 16, 0.60 g, 0.0016 mol) in 2-butanone (10 ml) was added dropwise to a stirred solution of morpholine (0.42 g, 0.0048 mol) in 2-butanone (40 ml) at 0° C. The solution was then heated under reflux for 16 hours, cooled and evaporated under vacuum. The residue was suspended in water (50 ml) and the suspension extracted with ethyl acetate (3×20 ml). The organic extracts were combined, washed with brine (2×30 ml), dried (Na2SO4) and evaporated under vacuum. The residue was chromatographed on silica gel (12 g), using an elution gradient of methanol in dichloromethane (0-2% methanol), to give an oil which solidified on trituration with hexane. Crystallisation from ethyl acetate-hexane gave the title compound as a colourless solid (0.36 g, 53%), m.p. 106°-107° C. Found: C,64.76; H,7.34; N,16.36. C23H31N5O3 requires C,64.92; H,7.34; N,16.46%.

後処理

  1. temperatureThe solution was then heated
  2. temperatureunder reflux for 16 hours
  3. temperaturecooled
  4. customevaporated under vacuum
  5. extractionthe suspension extracted with ethyl acetate (3×20 ml)
  6. washwashed with brine (2×30 ml)
  7. dry with materialdried (Na2SO4)
  8. customevaporated under vacuum
  9. customThe residue was chromatographed on silica gel (12 g)
  10. customto give an oil which
  11. customCrystallisation from ethyl acetate-hexane

出典と根拠

ORDレコード
ord-acd8c3bb96e44a78a59fe51dd73884c8
出典データセット
uspto-grants-1995_06
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US05426107

反応ノート

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