Gram-negative obligate intracellular bacterial pathogens responsible for diseases in a range of hosts including humans. Benzylidene acylhydrazide CF0001 could inhibit chlamydiae independent of iron starvation and T3SS inhibition. This finding promoted us to design and synthesize more benzylidene acylhydrazides to find novel anti-chlamydial agents. Methods: The carboxylic acids 1a-1d were coupled with Boc-hydrazide
                                    背景:衣原体以独特的双相生命周期为特征,是一组革兰氏阴性专性细胞内细菌病原体,它们负责包括人类在内的许多宿主的疾病。亚苄基酰
肼CF0001可以抑制衣原体感染,而与
铁饥饿和T3SS抑制作用无关。这一发现促使我们设计和合成更多的亚苄基酰
肼以发现新型抗衣原体药物。 方法:将
羧酸1a-1d与E
DCI和
DMAP的Boc酰
肼混合,以60-62%的产率获得中间体2a-2d。进行N-Boc脱保护以获得酰
肼盐酸盐3a-3d。接着,使酰
肼与醛缩合,分两步以30-52%的收率得到亚苄基酰
肼4a-4g。 结果:化合物4d对衣原体包裹体的形成和生长表现出最佳的抑制作用。化合物4d对传染性子代的IC50值为3.55 µM,优于CF0001的7.30 µM。 结论:为了找到新型抗衣原体药物,我们设计并合成了亚苄基酰
肼4a-4g。化合物4a,4d,4g对muridarum C. muridarum表现出抑制活性,IC50值为3