Methanol → 2-[3-(2-Cyanopyrrol-1-yl) benzoyl]guanidine hemisulfate
反応式
[S:1](=[O:5])(=[O:4])([OH:3])[OH:2].[C:6]([C:8]1[N:9]([C:13]2[CH:14]=[C:15]([CH:22]=[CH:23][CH:24]=2)[C:16]([N:18]=[C:19]([NH2:21])[NH2:20])=[O:17])[CH:10]=[CH:11][CH:12]=1)#[N:7].CO>C(OCC)(=O)C>[S:1]([OH:5])([OH:4])(=[O:3])=[O:2].[C:6]([C:8]1[N:9]([C:13]2[CH:14]=[C:15]([CH:22]=[CH:23][CH:24]=2)[C:16]([N:18]=[C:19]([NH2:20])[NH2:21])=[O:17])[CH:10]=[CH:11][CH:12]=1)#[N:7].[C:6]([C:8]1[N:9]([C:13]2[CH:14]=[C:15]([CH:22]=[CH:23][CH:24]=2)[C:16]([N:18]=[C:19]([NH2:20])[NH2:21])=[O:17])[CH:10]=[CH:11][CH:12]=1)#[N:7]参加物
5
実験手順
Conc. sulfuric acid (0.42 ml) was added to a mixture of 2-[3-(2-cyanopyrrol-1-yl)benzoyl]guanidine (2.0 g) and methanol (20 ml), and the mixture was stirred for 30 minutes at ambient temperature. To the mixture was added ethyl acetate (20 ml), and the isolated precipitate was collected by filtration. The precipitate was recrystallized from methanol-water to give 2-[3-(2-cyanopyrrol-1-yl) benzoyl]guanidine hemisulfate (1.53 g).
後処理
- filtrationthe isolated precipitate was collected by filtration
- customThe precipitate was recrystallized from methanol-water
出典と根拠
- ORDレコード
- ord-97023756ec204dcb8260329331a5d280
- 出典データセット
- uspto-grants-1998_10
- 特許番号
- US05824691
反応ノート
読み込み中…