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Triethylamine → Trimethylsilylethyl 6-((tert-butoxycarbonyl)methyl)-5-(2,4-dichlorophenyl)-7-methylimidazo[1,2-a]pyrimidine-2-carbamate

HRID 1868464
ノート
印刷プレビュー

反応式

HRID 1868464 の反応式
[C:1]([O:5][C:6]([CH2:8][C:9]1[C:10]([CH3:29])=[N:11][C:12]2[N:13]([CH:23]=[C:24](C(O)=O)[N:25]=2)[C:14]=1[C:15]1[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:16]=1[Cl:22])=[O:7])([CH3:4])([CH3:3])[CH3:2].C1C=CC(P(N=[N+]=[N-])(C2C=CC=CC=2)=[O:37])=CC=1.[Si:47]([CH2:51][CH2:52][OH:53])([CH3:50])([CH3:49])[CH3:48].CC[N:56]([CH2:59]C)CC>C1(C)C=CC=CC=1>[C:1]([O:5][C:6]([CH2:8][C:9]1[C:10]([CH3:29])=[N:11][C:12]2[N:13]([CH:23]=[C:24]([NH:56][C:59]([O:53][CH2:52][CH2:51][Si:47]([CH3:50])([CH3:49])[CH3:48])=[O:37])[N:25]=2)[C:14]=1[C:15]1[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:16]=1[Cl:22])=[O:7])([CH3:3])([CH3:4])[CH3:2]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 8471TriethylamineHCID 180132-(Trimethylsilyl)ethanolHCID 199401P,P-Diphenylphosphinic azideHCID 670215506-((Tert-butoxycarbonyl)methyl)-5-(2,4-dichlorophenyl)-7-methylimidazo[1,2-a]pyrimidine-2-carboxylic acid

生成物 1

HCID 67021519Trimethylsilylethyl 6-((tert-butoxycarbonyl)methyl)-5-(2,4-dichlorophenyl)-7-methylimidazo[1,2-a]pyrimidine-2-carbamate
収率 25.4%

試薬・触媒・溶媒 1

HCID 1140Toluene溶媒

反応条件

温度
65 °C

実験手順

To a stirred solution of 6-((tert-butoxycarbonyl)methyl)-5-(2,4-dichlorophenyl)-7-methylimidazo[1,2-a]pyrimidine-2-carboxylic acid (Example 58, Step 2, 45 mg, 0.1 mmol) in PhCH3 (3 mL) was added DPPA (43 μL, 0.2 mmol), TMSCH2CH2OH (71 μL, 0.5 mmol) and Et3N (31 μL, 0.22 mmol). The reaction was heated to 65° C. for 16 h and was concentrated under reduced pressure. The resulting residue was diluted with EtOAc and extracted with satd aq NH4Cl, NaHCO3 and brine prior to drying over anhydrous MgSO4. Filtration, concentration under reduced pressure and purification by silica gel chromatography afforded trimethylsilylethyl 6-((tert-butoxycarbonyl)methyl)-5-(2,4-dichlorophenyl)-7-methylimidazo[1,2-a]pyrimidine-2-carbamate (14 mg, 25%).

後処理

  1. concentrationwas concentrated under reduced pressure
  2. additionThe resulting residue was diluted with EtOAc
  3. extractionextracted with satd aq NH4Cl, NaHCO3 and brine
  4. dry with materialto drying over anhydrous MgSO4
  5. filtrationFiltration, concentration
  6. customunder reduced pressure and purification by silica gel chromatography

出典と根拠

ORDレコード
ord-aec46ade0af0420bb076dc5d511a2c0f
出典データセット
uspto-grants-2009_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07635699B2

反応ノート

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このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート