Pharma, was expected to realize the “functional cure of HBV”. However, it was dismissed in phase I clinical trial due to its neurotoxicity. In this study, a series of new DHQ derivatives containing a cyclic ether or benzo-fused (cyclic) ether moiety were designed, synthesized and evaluated for their in vitro activity. Many of them exhibited potent inhibition activity against HBsAg, HBeAg and HBV DNA
罗氏制药研发的二
氢喹啉酮(DHQ)候选药物RG7834有望实现“HBV的功能性治愈”。然而,由于其神经毒性,它在 I 期临床试验中被驳回。在这项研究中,设计、合成了一系列含有
环醚或
苯并稠合(环)醚部分的新型 DHQ 衍
生物,并对其体外活性进行了评估。其中许多对 HBsAg、HBeAg 和 HBV DNA 表现出有效的抑制活性。更重要的是,在体外神经毒性评价中,RG7834处理的
PC12细胞大部分变圆,甚至萎缩,神经突消失;相比之下,大多数用( 2ʹS, 6S )-1a处理的细胞,显示出与对照组相似的形态结构,具有清晰可见的神经突,表明( 2ʹS, 6S )-1a可以改善神经毒性。对DHQs结构-神经毒性关系的首次研究为DHQs的未来发展铺平了道路。