been reported, and few are suitable for clinical investigation. As a continuation of our structural optimization on the reported cGAS inhibitor 6 (G140), we developed a series of spiro[carbazole-3,3′-pyrrolidine] derivatives bearing a unique 2-azaspiro[4.5]decane structural motif, among which compound 30d-S was identified with high cellular effects against cGAS. This compound showed improved plasma exposure
环 GMP-
AMP 合酶 (cGAS) 的过度激活与许多炎症和自身免疫性疾病的发生有关,并且用特定
抑制剂抑制 cGAS 已被提议作为一种潜在的治疗策略。然而,仅有少数低效cGAS
抑制剂被报道,并且很少适合临床研究。作为我们对已报道的cGAS
抑制剂6 (G140)结构优化的延续,我们开发了一系列具有独特
2-氮杂螺[4.5]癸烷结构基序的螺[
咔唑-3,3'-
吡咯烷]衍
生物,其中化合物30d- S被认为对 cGAS 具有高细胞效应。该化合物在大鼠中表现出改善的血浆暴露、较低的清除率和 35% 的口服
生物利用度。此外,在LPS诱导的急性肺损伤(ALI)小鼠模型中,口服30mg/kg化合物30d- S可显着减轻肺部炎症并减轻组织病理学变化。这些结果证实30d- S是一种新型有效的cGAS
抑制剂,值得进一步研究。