BENZIMIDAZOLE CANNABINOID AGONISTS BEARING A SUBSTITUTED HETEROCYCLIC GROUP
申请人:JANSSEN PHARMACEUTICA NV
公开号:US20130324529A1
公开(公告)日:2013-12-05
The present invention is related to novel benzimidazole compounds of formula (I) having cannabinoid receptor agonistic properties, pharmaceutical compositions comprising these compounds, chemical processes for preparing these compounds and their use in the treatment of diseases linked to the mediation of the cannabinoid receptors in animals, in particular humans.
Transition-Metal-Free BF<sub>3</sub>-Mediated Oxidative and Non-Oxidative Cross-Coupling of Pyridines
作者:Quan Chen、Thierry León、Paul Knochel
DOI:10.1002/anie.201400750
日期:2014.8.11
We report a BF3‐mediated direct alkynylation of pyridines at C(2) by using a variety of alkynyllithium reagents (oxidative cross‐coupling). Moreover, we have developed a novel transition‐metal‐free cross‐coupling method between alkylmagnesium reagents and 4‐substituted pyridines, such as isonicotinonitrile and 4‐chloropyridine, by employing BF3⋅OEt2 as a promoter. The combination of these methods enabled