Diaminopyrimidines, diaminopyridines and diaminopyridazines as histamine H4 receptor modulators
作者:Brad M. Savall、Steven P. Meduna、Kevin Tays、Hui Cai、Robin L. Thurmond、Patricia McGovern、Michael Gaul、Bao-Ping Zhao、James P. Edwards
DOI:10.1016/j.bmcl.2014.12.027
日期:2015.2
Previously disclosed H4 receptor modulators, the triamino substituted pyridines and pyrimidines, contain a free primary amino (–NH2) group. In this Letter we demonstrate that an exocyclic amine (NH2) is not needed to maintain affinity, and also show a significant divergence in the SAR of the pendant diamine component. These des-NH2 azacycles also show a distinct functional spectrum, that appears to
先前公开的H 4受体调节剂,三氨基取代的吡啶和嘧啶,含有一个游离的伯氨基(-NH 2)基团。在这封信中,我们证明了不需要环外胺(NH 2)来保持亲和力,并且还显示了侧链二胺组分的SAR的显着差异。这些des -NH 2氮杂环化合物也显示出独特的功能谱,该谱似乎受到二胺成分的影响。在1,3-氨基嘧啶的情况下,优选的二胺是氨基吡咯烷,而不是更常见的哌嗪。最后,我们介绍了3,5-二氨基哒嗪类作为新型组胺H 4拮抗剂。