Discovery of Tetrasubstituted Imidazolines as Potent and Selective Neuropeptide Y Y5 Receptor Antagonists: Reduced Human Ether-a-go-go Related Gene Potassium Channel Binding Affinity and Potent Antiobesity Effect
作者:Nagaaki Sato、Makoto Ando、Shiho Ishikawa、Makoto Jitsuoka、Keita Nagai、Hirobumi Takahashi、Aya Sakuraba、Hiroyasu Tsuge、Hidefumi Kitazawa、Hisashi Iwaasa、Satoshi Mashiko、Akira Gomori、Ryuichi Moriya、Naoko Fujino、Tomoyuki Ohe、Akane Ishihara、Akio Kanatani、Takehiro Fukami
DOI:10.1021/jm900110t
日期:2009.5.28
imidazoline derivatives was synthesized and evaluated as neuropeptide Y (NPY) Y5 receptor antagonists. Optimization of previously reported imidazoline leads, 1a and 1b, was attempted by introduction of substituents at the 5-position on the imidazoline ring and modification of the bis(4-fluorphenyl) moiety. A number of potent derivatives without human ether-a-go-go related gene potassium channel (hERG) activity
合成了一系列新型咪唑啉衍生物,并将其评估为神经肽Y(NPY)Y5受体拮抗剂。通过在咪唑啉环的5-位引入取代基并修饰双(4-氟苯基)部分,尝试优化先前报道的咪唑啉导线1a和1b。鉴定了许多没有人类以太相关基因钾通道(hERG)活性的有效衍生物。包括2a在内的选定化合物被证明具有出色的大脑和CSF渗透性。化合物2a对慢性体内研究显示出合适的药代动力学特征,并有效抑制了d -Trp 34NPY诱导的大鼠急性食物摄入。在饮食诱导的肥胖小鼠模型中,口服2a可有效降低体重。