Some new derivatives of 1,4-dihydro-4-oxo-3-pyridinecarboxylic acid (quinolone-type compounds) 5 and 13 have been prepared in the benzo[b]thiopheneseries. The key step was the construction of the pyridine ring starting from 2-aminobenzo[b]thiophene derivatives. The synthesis of amine 9, was performed by using an original “animation” reaction.
已经以苯并[ b ]噻吩系列制备了一些新的1,4-二氢-4-氧代-3-吡啶甲酸羧酸(喹诺酮类化合物)5和13的衍生物。关键步骤是从2-氨基苯并[ b ]噻吩衍生物开始构建吡啶环。胺9的合成通过使用原始的“动画”反应进行。