Isothiourea analogues of histamine as potent agonists or antagonists of the histamine H3-receptor
作者:H van der Goot、MJP Schepers、GJ Sterk、H Timmerman
DOI:10.1016/0223-5234(92)90185-4
日期:1992.8
The synthesis and H-3-activity of a series of isothiourea analogues of histamine have been described. It has been shown that S-[2-(4(5)-imidazolyl)ethylisothiourea (VUF 8325) is a potent H-3-agonist measured as the electrically evoked contraction of the guinea-pig ileum. Upon methylation of the imidazole system or the isothiourea moiety a decrease in affinity was observed leading to either weak agonists or weak antagonists. Introduction of N-(phenylalkyl) substituents at the isothiourea part gives rise to highly potent H-3-antagonists. Particularly the 4-chlorobenzyl group appeared to be favourable in the series described resulting in a histamine H-3-antagonist with a pA2-value of 9.9.
SELECTIVE NPY (Y5) ANTAGONISTS
申请人:SYNAPTIC PHARMACEUTICAL CORPORATION
公开号:EP1194421A1
公开(公告)日:2002-04-10
EP1194421A4
申请人:——
公开号:EP1194421A4
公开(公告)日:2002-09-11
[EN] SELECTIVE NPY (Y5) ANTAGONISTS<br/>[FR] ANTAGONISTES SELECTIFS DU NPY (Y5)
申请人:SYNAPTIC PHARMA CORP
公开号:WO2001002379A1
公开(公告)日:2001-01-11
This invention is directed to bicyclic and tricyclic compounds which are selective antagonists for NPY (Y5) receptors. The invention provides a pharmaceutical composition comprising a therapeutically effective amount of a compound of the invention and a pharmaceutically acceptable carrier. This invention provides a pharmaceutical composition made by combining a therapeutically effective amount of a compound of this invention and a pharmaceutically acceptable carrier. The invention provides a process for making a pharmaceutical composition comprising combining a therapeutically effective amount of a compound of the invention and a pharmaceutically acceptable carrier. This invention further provides the use of a compound of the invention for the preparation of a pharmaceutical composition for treating an abnormality, wherein the abnormality is alleviated by decreasing the activity of a human Y5 receptor.