Hydrazine → HCID 67905363、化合物
反応式
[NH2:1][NH2:2].[O:3]=[C:4]1[CH:9]([CH2:10][C:11](OC)=[O:12])[S:8](=[O:16])(=[O:15])[C:7]2[S:17][C:18]([S:20](=[O:23])(=[O:22])[NH2:21])=[CH:19][C:6]=2[NH:5]1>CO>[S:20]([C:18]1[S:17][C:7]2[S:8](=[O:16])(=[O:15])[CH:9]([CH2:10][C:11]([NH:1][NH2:2])=[O:12])[C:4](=[O:3])[NH:5][C:6]=2[CH:19]=1)(=[O:23])(=[O:22])[NH2:21]参加物
4
実験手順
Anhydrous hydrazine (1 ml) was added to a solution of methyl (2,3-dihydro-2,4,4-trioxo-6-sulfamoyl-1H-thieno[2,3-b][1,4]thiazin-3-yl)acetate (1.0 g) in methanol (10 ml) at ambient temperature with stirring. After 5-6 hours, the methanol was removed under reduced pressure and the residue was treated with water (10 ml). The pH was adjusted to 6.5 and the resulting precipitate was collected, rinsed with water and dried under vacuum to give 0.40 g (2,3-dihydro-6-sulfamoyl-2,4,4-trioxo-1H-thieno[2,3-b][1,4]thiazin-3-yl)acetic acid hydrazide, mp 230° C., dec.
後処理
- customthe methanol was removed under reduced pressure
- additionthe residue was treated with water (10 ml)
- customthe resulting precipitate was collected
- washrinsed with water
- customdried under vacuum
出典と根拠
- ORDレコード
- ord-17f5911b7ee34a7c88cb981e686592f3
- 出典データセット
- uspto-grants-1992_03
- 特許番号
- US05093332
反応ノート
読み込み中…