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Acetonitrile → Toluene-4-sulfonic acid 1-(4-bromo-phenyl)-3-cyclopropyl-6,8-dimethyl-2,4,7-trioxo-1,2,3,4,7,8-hexahydro-pyrido[2,3-d]pyrimidin-5-yl ester

HRID 75643
ノート
印刷プレビュー

反応式

HRID 75643 の反応式
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:13]3[N:14]([CH3:21])[C:15](=[O:20])[C:16]([CH3:19])=[C:17]([OH:18])[C:12]=3[C:11](=[O:22])[N:10]([CH:23]3[CH2:25][CH2:24]3)[C:9]2=[O:26])=[CH:4][CH:3]=1.C(#N)C.[S:30](Cl)([C:33]1[CH:39]=[CH:38][C:36]([CH3:37])=[CH:35][CH:34]=1)(=[O:32])=[O:31]>C(N(CC)CC)C>[Br:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:13]3[N:14]([CH3:21])[C:15](=[O:20])[C:16]([CH3:19])=[C:17]([O:18][S:30]([C:33]4[CH:39]=[CH:38][C:36]([CH3:37])=[CH:35][CH:34]=4)(=[O:32])=[O:31])[C:12]=3[C:11](=[O:22])[N:10]([CH:23]3[CH2:24][CH2:25]3)[C:9]2=[O:26])=[CH:4][CH:3]=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 6342AcetonitrileHCID 73974-Toluenesulfonyl chlorideHCID 597170641-(4-bromo-phenyl)-3-cyclopropyl-5-hydroxy-6,8-dimethyl-1H,8H-pyrido[2,3-d]pyrimidine-2,4,7-trione

生成物 1

HCID 59717126Toluene-4-sulfonic acid 1-(4-bromo-phenyl)-3-cyclopropyl-6,8-dimethyl-2,4,7-trioxo-1,2,3,4,7,8-hexahydro-pyrido[2,3-d]pyrimidin-5-yl ester収率 74.3%

試薬・触媒・溶媒 1

HCID 8471
Triethylamine
溶媒

実験手順

To 1-(4-bromo-phenyl)-3-cyclopropyl-5-hydroxy-6,8-dimethyl-1H,8H-pyrido[2,3-d]pyrimidine-2,4,7-trione 38 (400 mg) obtained in Step 5 was added acetonitrile (8.0 ml), tosyl chloride 11 (458 mg) and triethylamine (0.34 ml) were added under a nitrogen atmosphere, and the mixture was stirred under reflux for 30 hrs. After allowing to cool to room temperature, the mixture was concentrated under reduced pressure. The residue was purified by column chromatography (chloroform:acetone=25:1→20:1) to give toluene-4-sulfonic acid 1-(4-bromo-phenyl)-3-cyclopropyl-6,8-dimethyl-2,4,7-trioxo-1,2,3,4,7,8-hexahydro-pyrido[2,3-d]pyrimidin-5-yl ester 39 (407 mg, yield 74%) as ocher crystals.

後処理

  1. additionwere added under a nitrogen atmosphere
  2. temperatureunder reflux for 30 hrs
  3. concentrationthe mixture was concentrated under reduced pressure
  4. customThe residue was purified by column chromatography (chloroform:acetone=25:1→20:1)

出典と根拠

ORDレコード
ord-90bcaffae6904cc6a8b3605fb5dc382c
出典データセット
uspto-grants-2014_09
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08835443B2

反応ノート

読み込み中…

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