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Cesium carbonate → tert-butyl 2-{[1-[(2,2-dimethyl-1,3-dioxolan-4-yl)methyl]-2-(ethoxymethyl)-1H-imidazo[4,5-c]quinolin-7-yl]oxy}ethylcarbamate

HRID 540885
ノート
印刷プレビュー

反応式

HRID 540885 の反応式
[CH3:1][C:2]1([CH3:26])[O:6][CH:5]([CH2:7][N:8]2[C:20]3[C:19]4[CH:18]=[CH:17][C:16]([OH:21])=[CH:15][C:14]=4[N:13]=[CH:12][C:11]=3[N:10]=[C:9]2[CH2:22][O:23][CH2:24][CH3:25])[CH2:4][O:3]1.I[CH2:28][CH2:29][NH:30][C:31](=[O:37])[O:32][C:33]([CH3:36])([CH3:35])[CH3:34].C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C=O)C>[CH3:1][C:2]1([CH3:26])[O:6][CH:5]([CH2:7][N:8]2[C:20]3[C:19]4[CH:18]=[CH:17][C:16]([O:21][CH2:28][CH2:29][NH:30][C:31](=[O:37])[O:32][C:33]([CH3:36])([CH3:35])[CH3:34])=[CH:15][C:14]=4[N:13]=[CH:12][C:11]=3[N:10]=[C:9]2[CH2:22][O:23][CH2:24][CH3:25])[CH2:4][O: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 10796Cesium carbonateHCID 641024tert-butyl N-(2-iodoethyl)carbamateHCID 1363478501-[(2,2-dimethyl-1,3-dioxolan-4-yl)methyl]-2-(ethoxymethyl)-1H-imidazo[4,5-c]quinolin-7-ol

生成物 1

HCID 68972116tert-butyl 2-{[1-[(2,2-dimethyl-1,3-dioxolan-4-yl)methyl]-2-(ethoxymethyl)-1H-imidazo[4,5-c]quinolin-7-yl]oxy}ethylcarbamate収率 73%

試薬・触媒・溶媒 1

HCID 6228
Dimethylformamide
溶媒

実験手順

Using a modification on the procedure described in Part L of Example 2, 1-[(2,2-dimethyl-1,3-dioxolan-4-yl)methyl]-2-(ethoxymethyl)-1H-imidazo[4,5-c]quinolin-7-ol (8.50 g, 23.8 mmol) was treated with tert-butyl 2-iodoethylcarbamate (7.10 g, 26.2 mmol) and cesium carbonate (11.62 g, 35.67 mmol) in DMF (120 mL). During the workup, after the reaction mixture was concentrated under reduced pressure, the residue was treated with water (75 mL) and stirred for 30 minutes. A precipitate was isolated by filtration and washed with diethyl ether to yield 8.7 g of tert-butyl 2-{[1-[(2,2-dimethyl-1,3-dioxolan-4-yl)methyl]-2-(ethoxymethyl)-1H-imidazo[4,5-c]quinolin-7-yl]oxy}ethylcarbamate as an off-white solid, mp 152-153° C.

後処理

  1. concentrationDuring the workup, after the reaction mixture was concentrated under reduced pressure
  2. additionthe residue was treated with water (75 mL)
  3. customA precipitate was isolated by filtration
  4. washwashed with diethyl ether

出典と根拠

ORDレコード
ord-56456dc3bfa04d0ea842cbd0adab414d
出典データセット
uspto-grants-2014_10
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08871782B2

反応ノート

読み込み中…

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