The identification and pharmacological evaluation of potent, selective and orally available ACC1 inhibitor
作者:Ryo Mizojiri、Moriteru Asano、Masako Sasaki、Yoshihiko Satoh、Yukiko Yamamoto、Hiroyuki Sumi、Hironobu Maezaki
DOI:10.1016/j.bmcl.2019.126749
日期:2019.12
in mouse cassette dosing PK study, hence in vivo PD studies were also carried out. Oral administration of 1b significantly reduced the concentration of malonyl-CoA in HCT-116 xenograft tumors at doses of more than 30 mg/kg. Furthermore, compound 1b showed significant antitumor efficacy in 786-O xenograft mice at an oral dose of 30 mg/kg (T/C = 0.5%). Accordingly, our novel potent ACC1-selective inhibitor
为了探索ACC1选择性抑制剂作为体内探针分子的潜力,我们合成了一系列1,3-苯并恶唑衍生物。以前,我们报道了一系列新型的双环和单环ACC1选择性抑制剂。其中,化合物1a表现出高度有效的细胞活性(醋酸盐吸收IC 50 = 0.76 nM)以及有希望的体内PD功效。但是,化合物1a在小鼠模型中的重复剂量给药中导致严重的体重减轻。由于1a对小鼠ACC1表现出有效的抑制活性以及对小鼠ACC2的强抑制作用,因此我们进一步研究了一系列1a类似物以减少不希望的体重变化。用脲基部分代替乙酰胺部分极大地改善了小鼠ACC1对ACC2的选择性。另外,类似物1b在小鼠盒式给药PK研究中显示出良好的生物利用度,因此也进行了体内PD研究。口服给药1b可以显着降低HCT-116异种移植肿瘤中丙二酰辅酶A的浓度,剂量超过30 mg / kg。此外,化合物1b在786-O异种移植小鼠中口服剂量为30 mg / kg(T /