Synthesis and Biological Evaluation of (S)-1,2,3,4-Tetrahydroisoquinoline-3-carboxylic Acids: A Novel Series of PPAR.GAMMA. Agonists
作者:Satoru Azukizawa、Masayasu Kasai、Kenji Takahashi、Tomohiro Miike、Kazuyoshi Kunishiro、Mamoru Kanda、Chisato Mukai、Hiroaki Shirahase
DOI:10.1248/cpb.56.335
日期:——
A novel series of 1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid derivatives were synthesized and biologically evaluated. (S)-2-Benzyl-7-[2-(5-methyl-2-phenyloxazol-4-yl)ethoxy]-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (10, KY-021) was identified as a novel peroxisome proliferators-activated receptor (PPAR)γ agonist, which showed potent activity in human PPARγ (EC50=11.8 nM). KY-021 reduced plasma glucose and triglyceride levels at 3 mg/kg/d for 7 d in male KK-Ay mice. KY-021 also decreased plasma triglyceride levels at 0.3—3 mg/kg/d for 6 d, and improved oral glucose tolerance at 1 and 3 mg/kg/d for 7 d in male Zucker fatty rats. Maximal plasma concentration of KY-021 after oral administration at 10 mg/kg was 6.6 μg/ml and 2.1 μg/ml in male ICR mice and male SD rats, respectively. Repeated oral administration of KY-021 at 30 mg/kg/d for 10 weeks had little toxicity in male SD rats. These results demonstrated that KY-021 has great potential as an efficacious and safe drug for diabetes.
合成了一系列新型 1,2,3,4-四氢异喹啉-3-羧酸衍生物,并对其进行了生物评估。(研究发现,(S)-2-苄基-7-[2-(5-甲基-2-苯基恶唑-4-基)乙氧基]-1,2,3,4-四氢异喹啉-3-羧酸(10,KY-021)是一种新型过氧化物酶体增殖激活受体(PPAR)γ 激动剂,对人类 PPARγ 具有强效活性(EC50=11.8 nM)。雄性 KK-Ay 小鼠在 3 mg/kg/d 的剂量下服用 KY-021 7 天,血浆葡萄糖和甘油三酯水平会降低。KY-021 还能降低雄性 Zucker 脂肪大鼠的血浆甘油三酯水平(0.3-3 mg/kg/d,持续 6 d),并能改善雄性 Zucker 脂肪大鼠的口服葡萄糖耐量(1 和 3 mg/kg/d,持续 7 d)。雄性 ICR 小鼠和雄性 SD 大鼠口服 10 mg/kg KY-021 后的最大血浆浓度分别为 6.6 μg/ml 和 2.1 μg/ml。以 30 毫克/千克/天的剂量连续口服 KY-021 10 周,雄性 SD 大鼠的毒性很小。这些结果表明,KY-021 作为一种高效、安全的糖尿病药物具有巨大的潜力。