Redox neutral [4+2] benzannulation of dienals and tertiary enaminones for benzaldehyde synthesis
作者:Lu Yang、Li Wei、Jie-Ping Wan
DOI:10.1039/c8cc03514h
日期:——
transformation, cascade reactions of dienals and tertiary enaminones involving [4+2] annulation, Hofmann-like amine elimination and aromatization are devised for benzaldehyde synthesis. This method is of particular interest in providing benzaldehydes containing an electron withdrawing group at the C3 position which are hard to access by previous methods for benzaldehyde synthesis.
Discovery of a Selective TRPM8 Antagonist with Clinical Efficacy in Cold-Related Pain
作者:Mark D. Andrews、Kerry af Forselles、Kevin Beaumont、Sébastien R. G. Galan、Paul A. Glossop、Mathilde Grenie、Alan Jessiman、Amy S. Kenyon、Graham Lunn、Graham Maw、Robert M. Owen、David C. Pryde、Dannielle Roberts、Thien Duc Tran
DOI:10.1021/ml500479v
日期:2015.4.9
The transient receptor potential (TRP) family of ion channels comprises nonselective cation channels that respond to a wide range of chemical and thermal stimuli. TRPM8, a member of the melastatin subfamily, is activated by cold temperatures (<28 degrees C), and antagonists of this channel have the potential to treat cold induced allodynia and hyperalgesia. However, TRPM8 has also been implicated in mammalian thermoregulation and antagonists have the potential to induce hypothermia in patients. We report herein the identification and optimization of a series of TRPM8 antagonists that ultimately led to the discovery of PF-05105679. The clinical finding with this compound will be discussed, including both efficacy and its ability to affect thermoregulation processes in humans.