3-Nitrobenzaldehyde → 3-(1-Benzylpyrrolidin-3-yl) 5-methyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate

HRID 52458

反応式

HRID 52458 の反応式
[N+:1]([C:4]1[CH:5]=[C:6]([CH:9]=[CH:10][CH:11]=1)[CH:7]=O)([O-:3])=[O:2].[CH2:12]([N:19]1[CH2:23][CH2:22][CH:21]([O:24][C:25](=[O:30])[CH2:26][C:27]([CH3:29])=O)[CH2:20]1)[C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1.[CH3:31][O:32][C:33](=[O:38])/[CH:34]=[C:35](\[NH2:37])/[CH3:36]>C(O)(C)C.C(Cl)(Cl)Cl>[CH3:31][O:32][C:33]([C:34]1[CH:7]([C:6]2[CH:9]=[CH:10][CH:11]=[C:4]([N+:1]([O-:3])=[O:2])[CH:5]=2)[C:26]([C:25]([O:24][CH:21]2[CH2:22][CH2:23][N:19]([CH2:12][C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=3)[CH2:20]2)=[O:30])=[C:27]([CH3:29])[NH:37][C:35]=1[CH3:36])=[O:38]

参加物

6

反応物 3

HCID 74493-NitrobenzaldehydeHCID 643918Methyl 3-aminocrotonateHCID 136528121-Benzyl-3-acetoacetoxypyrrolidine

生成物 1

HCID 22963-(1-Benzylpyrrolidin-3-yl) 5-methyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate収率 99.9%

試薬・触媒・溶媒 2

HCID 3776Isopropanol溶媒HCID 6212Chloroform溶媒

実験手順

In 5 ml of isopropanol were dissolved 1.51 g (0.01 mole) of 3-nitrobenzaldehyde, 2.61 g (0.01 mole) of 1-benzyl-3-acetoacetoxypyrrolidine, and 1.15 g (0.01 mole) of 3-aminocrotonic acid methyl ester and the solution thus obtained was refluxed for 8 hours. Then, the solvent was distilled off under reduced pressure, the residue thus formed was dissolved in chloroform, the solution was washed, in succession, with diluted hydrochloric acid, water, a saturated aqueous sodium hydrogencarbonate solution, and dried over anhydrous magnesium sulfate. Then, the solvent was distilled off under reduced pressure to provide 4.91 g of 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid 3-(1-benzylpyrrolidin-3-yl)ester 5-methyl ester as a caramel form.

後処理

  1. customthe solution thus obtained
  2. temperaturewas refluxed for 8 hours
  3. distillationThen, the solvent was distilled off under reduced pressure
  4. customthe residue thus formed
  5. washthe solution was washed, in succession, with diluted hydrochloric acid, water
  6. dry with materiala saturated aqueous sodium hydrogencarbonate solution, and dried over anhydrous magnesium sulfate
  7. distillationThen, the solvent was distilled off under reduced pressure

出典と根拠

ORDレコード
ord-f8c15432f98143a3a8449939d6dc9c1f
出典データセット
uspto-grants-1997_04
特許番号
US05616715

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