Syntheses and structure-activity relationships of novel, potent, and selective trans-2-[3-oxospiro[isobenzofuran-1(3H),1′-cyclohexan]-4′-yl]benzimidazole NPYY5 receptor antagonists

被引:19
|
作者
Ogino, Yoshio [1 ]
Ohtake, Norikazu [1 ]
Nagae, Yoshikazu [1 ]
Matsuda, Kenji [1 ]
Ishikawa, Makoto [1 ]
Moriya, Minoru [1 ]
Kanesaka, Maki [1 ]
Mitobe, Yuko [1 ]
Ito, Junko [1 ]
Kanno, Tetsuya [1 ]
Ishihara, Akane [1 ]
Iwaasa, Hisashi [1 ]
Ohe, Tomoyuki [1 ]
Kanatani, Akio [1 ]
Fukami, Takehiro [1 ]
机构
[1] Banyu Pharmaceut Co Ltd, Banyu Tsukuba Res Inst, Tsukuba, Ibaraki 3002611, Japan
关键词
neuropeptide Y; Y5; receptor; antagonist; anti-obesity; benzimidazole;
D O I
10.1016/j.bmcl.2008.08.021
中图分类号
R914 [药物化学];
学科分类号
100701 ;
摘要
Syntheses and structure-activity relationships of a novel class of 2-[3-oxospiro[isobenzofuran-1(3H), 1'-cyclohexan]-4'-yl]benzimidazole NPY Y5 receptor antagonists are described. Optimization of the lead compound 2a by incorporating substituents into the 5-position or into both the 5-and 6-positions of the benzimidazole core part led to the identification of 5-(5-methyl-1,2,4-oxadiazol-2-yl) benzimidazole (2r: IC(50) = 3.3 nM) and 5-(2-methyltetrazol-5-yl) benzimidazole (2u: IC(50) = 5.9 nM), both of which are potent, selective, and orally bioavailable Y5 receptor antagonists. Crown Copyright (C) 2008 Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:4997 / 5001
页数:5
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