Ethyl 7-bromoacetyl-1-ethyl-6-fluoro-1,4-dihydro-4-oxo-3quinolinecarboxylate → 7-[2-[1-(N-acetylamino)ethyl]-4-thiazolyl]-1-ethyl-6-fluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid ethyl ester
反応式
[CH2:1]([O:3][C:4]([C:6]1[C:15](=[O:16])[C:14]2[C:9](=[CH:10][C:11]([C:18](=O)[CH2:19]Br)=[C:12]([F:17])[CH:13]=2)[N:8]([CH2:22][CH3:23])[CH:7]=1)=[O:5])[CH3:2].[C:24]([NH:27][CH:28]([CH3:32])[C:29]([NH2:31])=[S:30])(=[O:26])[CH3:25]>C(O)C>[CH2:1]([O:3][C:4]([C:6]1[C:15](=[O:16])[C:14]2[C:9](=[CH:10][C:11]([C:18]3[N:31]=[C:29]([CH:28]([NH:27][C:24](=[O:26])[CH3:25])[CH3:32])[S:30][CH:19]=3)=[C:12]([F:17])[CH:13]=2)[N:8]([CH2:22][CH3:23])[CH:7]=1)=[O:5])[CH3:2]参加物
4
実験手順
According to example 30, reacting 7-bromoacetyl-1-ethyl-6-fluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid ethyl ester with 2-(acetylamino)thiopropionamide in ethanol gave 7-[2-[1-(N-acetylamino)ethyl]-4-thiazolyl]-1-ethyl-6-fluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid ethyl ester, mp 236°-238° C., which was hydrolyzed with refluxing 6N hydrochloric acid to afford the title compound, mp 246°-250° C. (dec).