Discovery of pyridone-containing imidazolines as potent and selective inhibitors of neuropeptide Y Y5 receptor

被引:17
作者
Ando, Makoto [1 ]
Sato, Nagaaki [1 ]
Nagase, Tsuyoshi [1 ]
Nagai, Keita [1 ]
Ishikawa, Shiho [1 ]
Takahashi, Hirobumi [1 ]
Ohtake, Norikazu [1 ]
Ito, Junko [1 ]
Hirayama, Mioko [1 ]
Mitobe, Yuko [1 ]
Iwaasa, Hisashi [1 ]
Gomori, Akira [1 ]
Matsushita, Hiroko [1 ]
Tadano, Kiyoshi [1 ]
Fujino, Naoko [1 ]
Tanaka, Sachiko [1 ]
Ohe, Tomoyuki [1 ]
Ishihara, Akane [1 ]
Kanatani, Akio [1 ]
Fukami, Takehiro [1 ]
机构
[1] Banyu Pharmaceut Co Ltd, Merck Res Labs, Tsukuba Res Inst, Tsukuba, Ibaraki 3002611, Japan
关键词
Neuropeptide Y Y5 receptor; Anti-obesity; Y5; antagonist; Imidazoline class; INCREASED HYPOTHALAMIC CONTENT; MESSENGER-RIBONUCLEIC-ACID; OBESITY SYNDROME; MICE; ANTAGONISTS; EXPRESSION; DEFICIENT; EFFICIENT; NUCLEUS; RATS;
D O I
10.1016/j.bmc.2009.05.069
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
A series of 2-pyridone-containing imidazoline derivatives was synthesized and evaluated as neuropeptide Y Y5 receptor antagonists. Optimization of the 2-pyridone structure on the 2-position of the imidazoline ring led to identification of 1-(difluoromethyl)-5-[(4S,5S)-4-(4-fluorophenyl)-4-(6-fluoropyridin- 3-yl)-5-methyl-4,5-dihydro-1H-imidazol-2-yl] pyridin-2(1H)-one (7m). Compound 7m displayed statistically significant inhibition of food intake in an agonist-induced food intake model in SD rats and no adverse cardiovascular effects in anesthetized dogs. In addition, markedly higher brain penetrability and a lower plasma Occ90 value were observed in P-gp-deficient mdr1a (-/-) mice compared to mdr1a (+/+) mice after oral administration of 7m. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:6106 / 6122
页数:17
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