Chloromethyl Methyl Ether → 4-[3-{[tert-Butyl(dimethyl)silyl]oxy}-2-(methoxymethoxy)propyl]-6-methoxypyrido[2,3-b]pyrazin-3(4H)-one

HRID 1847051ノート

反応式

HRID 1847051 の反応式
C(N(CC)C(C)C)(C)C.Cl[CH2:11][O:12][CH3:13].[Si:14]([O:21][CH2:22][CH:23]([OH:38])[CH2:24][N:25]1[C:30](=[O:31])[CH:29]=[N:28][C:27]2[CH:32]=[CH:33][C:34]([O:36][CH3:37])=[N:35][C:26]1=2)([C:17]([CH3:20])([CH3:19])[CH3:18])([CH3:16])[CH3:15]>ClCCl>[Si:14]([O:21][CH2:22][CH:23]([O:38][CH2:11][O:12][CH3:13])[CH2:24][N:25]1[C:30](=[O:31])[CH:29]=[N:28][C:27]2[CH:32]=[CH:33][C:34]([O:36][CH3:37])=[N:35][C:26]1=2)([C:17]([CH3:20])([CH3:19])[CH3:18])([CH3:15])[CH3:16]

参加物

5

反応物 3

HCID 7864Chloromethyl Methyl EtherHCID 81531DiisopropylethylamineHCID 867249764-(3-{[tert-Butyl(dimethyl)silyl]oxy}-2-hydroxypropyl)-6-methoxypyrido[2,3-b]pyrazin-3(4H)-one

生成物 1

HCID 867249774-[3-{[tert-Butyl(dimethyl)silyl]oxy}-2-(methoxymethoxy)propyl]-6-methoxypyrido[2,3-b]pyrazin-3(4H)-one収率 67.3%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒2 回

実験手順

N,N-Diisopropylethylamine (1.93 ml, 11.10 mmol) and chloromethylmethyl ether (0.56 ml, 7.40 mmol) were added under cooling on ice to a solution of 4-(3-{[tert-butyl(dimethyl)silyl]oxy}-2-hydroxypropyl)-6-methoxypyrido[2,3-b]pyrazin-3(4H)-one (1.35 g, 3.70 mmol) in dichloromethane (20 ml) and the mixture was stirred for 24 hours. The reaction solution was diluted with dichloromethane and washed with water. The organic layer was dried over anhydrous sodium sulfate, the solvent was removed under reduced pressure and the residue was purified by silica gel column chromatography (hexane/ethyl acetate) to yield 1.02 g (67%) of the title compound in the form of a yellow oily product.

後処理

  1. washwashed with water
  2. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  3. customthe solvent was removed under reduced pressure
  4. customthe residue was purified by silica gel column chromatography (hexane/ethyl acetate)

出典と根拠

ORDレコード
ord-79cc8392f1d741b2a80ea68bb89dc631
出典データセット
uspto-grants-2015_02
特許番号
US08952010B2

反応ノート

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