A series of tetrahydronaphthyridine derivatives as novel RORγt inverse agonists were designed and synthesized. We reduced the lipophilicity of tetrahydroisoquinoline compound 1 by replacement of the trimethylsilyl group and SBDD-guided scaffold exchange, which successfully afforded compound 7 with a lower log D value and tolerable in vitro activity. Consideration of LLE values in the subsequent optimization of the carboxylate tether led to the discovery of [cis-3-({(5R)-5-[(7-fluoro-1,1-dimethyl-2,3-dihydro-1H-inden-5-yl)carbamoyl]-2-methoxy-7,8-dihydro-1,6-naphthyridin-6(5H)-yl}carbonyl)cyclobutyl]acetic acid, TAK-828F (10), which showed potent RORγt inverse agonistic activity, excellent selectivity against other ROR isoforms and nuclear receptors, and a good pharmacokinetic profile. In animal studies, oral administration of compound 10 exhibited robust and dose-dependent inhibition of IL-17A cytokine expression in a mouse IL23-induced gene expression assay. Furthermore, development of clinical symptoms in a mouse experimental autoimmune encephalomyelitis model was significantly reduced. Compound 10 was selected as a clinical compound for the treatment of Th17-driven autoimmune diseases.

中文翻译：

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[[顺式-3-（{（5 R）-5-[（7-氟-1,1-二甲基-2,3-二氢-1 H-茚满-5-基）氨基甲酰基] -2-甲氧基-]的发现7,8-二氢-1,6-萘啶-6（5 H）-基}羰基）环丁基]乙酸（TAK-828F）作为有效，选择性和口服可用的新型视黄酸受体相关孤儿受体γt逆激动剂

设计并合成了一系列新型RORγt反向激动剂四氢萘啶衍生物。我们通过替换三甲基甲硅烷基和SBDD引导的支架交换来降低四氢异喹啉化合物1的亲脂性，这成功地提供了具有较低log  D值和可耐受的体外活性的化合物7。在随后优化羧酸酯系链中考虑LLE值导致发现[顺式-3-（{（5 R）-5-[（7-氟-1,1-二甲基-2,3-二氢-1 H-茚满-5-基）氨基甲酰基] -2-甲氧基-7,8-二氢-1,6-萘吡啶-6（5 H）-基}羰基）环丁基]乙酸，TAK-828F（10），它具有强大的RORγt反向激动活性，对其他ROR亚型和核受体的优异选择性以及良好的药代动力学特征。在动物研究中，化合物10的口服给药在小鼠IL23诱导的基因表达分析中显示出对IL-17A细胞因子表达的强烈和剂量依赖性抑制。此外，在小鼠实验性自身免疫性脑脊髓炎模型中临床症状的发展显着减少。选择化合物10作为用于治疗Th17驱动的自身免疫疾病的临床化合物。