Triethylamine → 1-Cyclopropyl-6-fluoro-7-(3-dimethylamino-1-azetidinyl)-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid
反応式
[CH:1]1([N:4]2[C:13]3[C:8](=[CH:9][C:10]([F:15])=[C:11](F)[CH:12]=3)[C:7](=[O:16])[C:6]([C:17]([OH:19])=[O:18])=[CH:5]2)[CH2:3][CH2:2]1.Cl.Cl.[CH3:22][N:23]([CH3:28])[CH:24]1[CH2:27][NH:26][CH2:25]1.C(N(CC)CC)C>>[CH:1]1([N:4]2[C:13]3[C:8](=[CH:9][C:10]([F:15])=[C:11]([N:26]4[CH2:27][CH:24]([N:23]([CH3:28])[CH3:22])[CH2:25]4)[CH:12]=3)[C:7](=[O:16])[C:6]([C:17]([OH:19])=[O:18])=[CH:5]2)[CH2:3][CH2:2]1参加物
4
実験手順
A mixture of 0.25 g (1.32 mmoles) of 1-cyclopropyl-6,7-difluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid, 0.34 g (12 mmoles) of 3-dimethylaminoazetidine dihydrochloride and 3.3 g (33 mmoles) of triethylamine is heated under reflux in 10 ml of pryidine for 2 hours. The mixture is evaporated under vacuum, water is added and the resulting mixture made alkaline with 1N sodium hydroxide, heated, filtered while hot, acidified with acetic acid and filtered again. After washing with water, 0.4 g (88%) of 1-cyclopropyl-6-fluoro-7-(3-dimethylamino-1-azetidinyl)-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid are obtained, melting at 255°-61° C.
後処理
- temperatureis heated
- temperatureunder reflux in 10 ml of pryidine for 2 hours
- customThe mixture is evaporated under vacuum, water
- additionis added
- temperatureheated
- filtrationfiltered while hot,
- filtrationfiltered again
- washAfter washing with water, 0.4 g (88%) of 1-cyclopropyl-6-fluoro-7-(3-dimethylamino-1-azetidinyl)-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid
- customare obtained
出典と根拠
- ORDレコード
- ord-b155683b214249d5ac0aec0dd0b8c0d3
- 出典データセット
- uspto-grants-1990_05
- 特許番号
- US04927926
反応ノート
読み込み中…