Acetamide, N-methoxy-2-[(4-methoxyphenyl)methoxy]-N-methyl- → 2-[(4-Methoxybenzyl)oxy]-1-[5-(7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1,3-thiazol-2-yl]ethanone

HRID 44942ノート

反応式

HRID 44942 の反応式
[S:1]1[C:5]([C:6]2[C:7]3[CH:14]=[CH:13][N:12]([CH2:15][O:16][CH2:17][CH2:18][Si:19]([CH3:22])([CH3:21])[CH3:20])[C:8]=3[N:9]=[CH:10][N:11]=2)=[CH:4][N:3]=[CH:2]1.C([Li])CCC.CON(C)[C:31](=[O:43])[CH2:32][O:33][CH2:34][C:35]1[CH:40]=[CH:39][C:38]([O:41][CH3:42])=[CH:37][CH:36]=1>C1COCC1.CCCCCC>[CH3:42][O:41][C:38]1[CH:39]=[CH:40][C:35]([CH2:34][O:33][CH2:32][C:31]([C:2]2[S:1][C:5]([C:6]3[C:7]4[CH:14]=[CH:13][N:12]([CH2:15][O:16][CH2:17][CH2:18][Si:19]([CH3:22])([CH3:21])[CH3:20])[C:8]=4[N:9]=[CH:10][N:11]=3)=[CH:4][N:3]=2)=[O:43])=[CH:36][CH:37]=1

参加物

6

反応物 3

HCID 11424955Acetamide, N-methoxy-2-[(4-methoxyphenyl)methoxy]-N-methyl-HCID 574776204-(1,3-thiazol-5-yl)-7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidineHCID 178418339Butyllithium

生成物 1

HCID 574776382-[(4-Methoxybenzyl)oxy]-1-[5-(7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1,3-thiazol-2-yl]ethanone収率 66.3%

試薬・触媒・溶媒 2

HCID 8028Tetrahydrofuran溶媒HCID 8058Hexane溶媒

実験手順

To a solution of 4-(1,3-thiazol-5-yl)-7-[2-(trimethylsilyl)ethoxy]methyl-7H-pyrrolo[2,3-d]-pyrimidine (2.12 g, 6.38 mmol) in THF (70 mL) at −78° C. was added 2.5 M n-butyllithium in hexane (3.06 mL) slowly dropwise. After stirring for 30 minutes, N-methoxy-2-[(4-methoxybenzyl)oxy]-N-methylacetamide (2.29 g, 9.56 mmol) was added. The reaction was continued for 30 minutes following the addition, at −78° C., then the cooling bath was removed and the reaction was quenched with saturated ammonium chloride and extracted with ether. The extracts were dried with sodium sulfate and concentrated in vacuo. The crude mixture was purified by flash column chromatography (ethyl acetate/hexanes) to afford desired product (2.16 g, 66%).

後処理

  1. waitThe reaction was continued for 30 minutes
  2. additionthe addition
  3. customat −78° C., then the cooling bath was removed
  4. customthe reaction was quenched with saturated ammonium chloride
  5. extractionextracted with ether
  6. dry with materialThe extracts were dried with sodium sulfate
  7. concentrationconcentrated in vacuo
  8. customThe crude mixture was purified by flash column chromatography (ethyl acetate/hexanes)

出典と根拠

ORDレコード
ord-cac80054aafd425fb6a48ec705e88503
出典データセット
uspto-grants-2013_09
特許番号
US08541425B2

反応ノート

読み込み中…