Discovery of Novel Indazole Derivatives as Orally Available β<sub>3</sub>-Adrenergic Receptor Agonists Lacking Off-Target-Based Cardiovascular Side Effects
作者:Yasuhiro Wada、Seiji Nakano、Akifumi Morimoto、Ken-ichi Kasahara、Takahiko Hayashi、Yoshio Takada、Hiroko Suzuki、Michiko Niwa-Sakai、Shigeki Ohashi、Mutsuhiro Mori、Takatsugu Hirokawa、Satoshi Shuto
DOI:10.1021/acs.jmedchem.6b01197
日期:2017.4.27
that indazole derivative 8 was a highly selective β3-adrenergic receptor (β3-AR) agonist, but it appeared to be metabolically unstable. To improve metabolic stability, further optimization of this scaffold was carried out. We focused on the sulfonamide moiety of this scaffold, which resulted in the discovery of compound 15 as a highly potent β3-AR agonist (EC50 = 18 nM) being inactive to β1-, β2-, and
我们先前发现吲唑衍生物8是一个高选择性β 3 -肾上腺素能受体(β 3 -AR)激动剂,但它似乎是代谢不稳定。为了改善代谢稳定性,对该支架进行了进一步的优化。我们集中在这个支架,导致化合物的发现的磺酰胺部分15作为一个高度有效的β 3 -AR激动剂(EC 50 = 18 nM)的不活动对β 1 - ,β 2 -和α 1A -AR (β 1 /β 3,β 2 /β 3,α 1A /β 3> 556倍)。化合物15显示出剂量依赖性的β 3在狨膀胱-AR介导的反应平滑肌,具有理想的代谢稳定性和药代动力学特性(C ^最大值和AUC),而当静脉内给药没有显着的影响心脏速率或平均血压( 3 mg / kg)麻醉的大鼠。因此,化合物15是一种高度有效的,选择性的和可口服利用的β 3 -AR激动剂,其可作为候选药物为膀胱过动症的治疗中,而不偏离基于目标的心血管副作用。