Aldosterone synthase (CYP11B2) inhibitors have been explored in recent years as an alternative therapeutic option to mineralocorticoid receptor (MR) antagonists to reduce elevated aldosterone levels, which are associated with deleterious effects on various organ systems including the heart, vasculature, kidney, and central nervous system (CNS). A benzamide pyridine hit derived from a focused screen was successfully developed into a series of potent and selective 3-pyridyl isoindolin-1-ones CYP11B2 inhibitors. Our systematic structure–activity relationship study enabled us to identify unique structural features that result in high selectivity against the closely homologous cortisol synthase (CYP11B1). We evaluated advanced lead molecules, exemplified by compound 52, in an in vivo cynomolgus monkey acute adrenocorticotropic hormone (ACTH) challenge model and demonstrated a superior 100-fold in vivo selectivity against CYP11B1.

中文翻译：

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发现3-吡啶基异吲哚啉-1-酮衍生物为有效，选择性和口服活性的醛固酮合酶（CYP11B2）抑制剂。

近年来，醛固酮合酶（CYP11B2）抑制剂已被研究作为盐皮质激素受体（MR）拮抗剂的替代治疗选择，以降低醛固酮水平升高，这与对包括心脏，血管，肾脏和中枢在内的各种器官系统产生有害影响神经系统（CNS）。来自聚焦筛选的苯甲酰胺吡啶命中成功开发为一系列有效的和选择性的3-吡啶基异吲哚啉-1-酮CYP11B2抑制剂。我们系统的结构-活性关系研究使我们能够识别独特的结构特征，这些特征可导致对紧密同源的皮质醇合酶（CYP11B1）的高选择性。我们评估了先进的引导分子，由化合物例示52，在体内食蟹猴急性促肾上腺皮质激素（ACTH）攻击模型，并显示出对CYP11B1优越的100倍的体内选择性。