1447913-56-5Relevant articles and documents
Amine-free melanin-concentrating hormone receptor 1 antagonists: Novel non-basic 1-(2H-indazole-5-yl)pyridin-2(1H)-one derivatives and mitigation of mutagenicity in Ames test
Igawa, Hideyuki,Takahashi, Masashi,Ikoma, Minoru,Kaku, Hiromi,Kakegawa, Keiko,Kina, Asato,Aida, Jumpei,Okuda, Shoki,Kawata, Yayoi,Noguchi, Toshihiro,Hotta, Natsu,Yamamoto, Syunsuke,Nakayama, Masaharu,Nagisa, Yasutaka,Kasai, Shizuo,Maekawa, Tsuyoshi
, p. 2504 - 2518 (2016/05/09)
To develop non-basic melanin-concentrating hormone receptor 1 (MCHR1) antagonists with a high probability of target selectivity and therapeutic window, we explored neutral bicyclic motifs that could replace the previously reported imidazo[1,2-a]pyridine or 1H-benzimidazole motif. The results indicated that the binding affinity of a chemically neutral 2H-indazole derivative 8a with MCHR1 (hMCHR1: IC50 = 35 nM) was comparable to that of the imidazopyridine and benzimidazole derivatives (1 and 2, respectively) reported so far. However, 8a was positive in the Ames test using TA1537 in S9- condition. Based on a putative intercalation of 8a with DNA, we introduced a sterically-hindering cyclopropyl group on the indazole ring to decrease planarity, which led to the discovery of 1-(2-cyclopropyl-3-methyl-2H-indazol-5-yl)-4-{[5-(trifluoromethyl)thiophen-3-yl]methoxy}pyridin-2(1H)-one 8l without mutagenicity in TA1537. Compound 8l exerted significant antiobesity effects in diet-induced obese F344 rats and exhibited promising safety profile.
BENZIMIDAZOLE DERIVATIVES AS MCH RECEPTOR ANTAGONISTS
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Page/Page column 233; 234, (2013/07/25)
The present invention provides an aromatic ring compound having a melanin-concentrating hormone receptor antagonistic action and useful as an agent for the prophylaxis or treatment of obesity and the like. The present invention relates to a compound represented by the formula (I) wherein each symbol as defined in the specification, or a salt thereof.