Lithium hydroxide, monohydrate → 2,4-Diamino-6-ethyl-5-(3-(2-(3-carboxypropoxy)phenoxy)propoxy)pyrimidine

HRID 40815ノート

反応式

HRID 40815 の反応式
[NH2:1][C:2]1[N:7]=[C:6]([NH2:8])[C:5]([OH:9])=[C:4]([CH2:10][CH3:11])[N:3]=1.O.[OH-].[Li+].Br[CH2:16][CH2:17][CH2:18][O:19][C:20]1[CH:34]=[CH:33][CH:32]=[CH:31][C:21]=1[O:22][CH2:23][CH2:24][CH2:25][C:26]([O:28]CC)=[O:27]>CN(C=O)C.O>[NH2:1][C:2]1[N:7]=[C:6]([NH2:8])[C:5]([O:9][CH2:16][CH2:17][CH2:18][O:19][C:20]2[CH:34]=[CH:33][CH:32]=[CH:31][C:21]=2[O:22][CH2:23][CH2:24][CH2:25][C:26]([OH:28])=[O:27])=[C:4]([CH2:10][CH3:11])[N:3]=1

参加物

6

反応物 3

HCID 168937Lithium hydroxide, monohydrateHCID 205093882,4-Diamino-6-ethylpyrimidin-5-olHCID 68574422Ethyl 4-(2-(3-bromopropoxy)phenoxy)butanoate

生成物 1

HCID 252605752,4-Diamino-6-ethyl-5-(3-(2-(3-carboxypropoxy)phenoxy)propoxy)pyrimidine収率 59%

試薬・触媒・溶媒 2

HCID 962Water溶媒HCID 6228Dimethylformamide溶媒2 回

反応条件

温度
25 °C

実験手順

2,4-Diamino-6-ethyl-5-hydroxypyrimidine (0.4625 g, 3 mmol) was added to a stirred solution of lithium hydroxide monohydrate (0.4406 g, 10.5 mmol) in DMF (4 mL) and the reaction mixture was stirred at 25° C. for 1 hour. A solution of ethyl 4-(2-(3-bromopropoxy)phenoxy)butanoate (1.0357 g, 3 mmol) in DMF (1 mL) was added and the reaction mixture was left stirring at 25° C. overnight. DMF was partially removed under reduced pressure to give residue. The residue was diluted with water and extracted with dichloromethane. The aqueous layer was neutralized with dilute HCl to give white solid. Recrystallization with acetone afforded the desired diaminopyrimidine as white solid (0.6911 g, 59%, m.p. 204-206° C.). 1H NMR (400 MHz, DMSO-d6): 1.10 (3H, t, J=7.5 Hz), 1.91 (2H, m), 2.14 (2H, m), 2.31-2.39 (4H, m), 3.78 (2H, t, J=6.1 Hz), 3.96 (2H, t, J=6.4 Hz), 4.13 (2H, t, J=6.1 Hz), 5.60 (2H, s), 6.09 (2H, s), 6.86-6.90 (2H, m), 6.95-7.01 (2H, m).

後処理

  1. waitthe reaction mixture was left
  2. stirringstirring at 25° C. overnight
  3. customDMF was partially removed under reduced pressure
  4. customto give residue
  5. extractionextracted with dichloromethane
  6. customto give white solid
  7. customRecrystallization with acetone

出典と根拠

ORDレコード
ord-117d26b66f6740e998de4feed01a4394
出典データセット
uspto-grants-2013_09
特許番号
US08530491B2

反応ノート

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