HETEROCYCLIC COMPOUNDS FOR THE TREATMENT OF STRESS-RELATED CONDITIONS
申请人:Takahashi Akira
公开号:US20120065189A1
公开(公告)日:2012-03-15
The present invention provides a novel heterocyclic compound. A heterocyclic compound represented by general formula (1) wherein, R
1
and R
2
, each independently represent hydrogen; a phenyl lower alkyl group that may have a substituent(s) selected from the group consisting of a lower alkyl group and the like on a benzene ring and/or a lower alkyl group; or a cyclo C3-C8 alkyl lower alkyl group; or the like; R
3
represents a lower alkynyl group or the like; R
4
represents a phenyl group that may have a substituent(s) selected from the group consisting of a 1,3,4-oxadiazolyl group that may have e.g., halogen or a heterocyclic group selected from pyridyl group and the like; the heterocyclic group may have at least one substituent(s) selected from a lower alkoxy group and the like or a salt thereof.
A Versatile Route to Unstable Diazo Compounds via Oxadiazolines and their Use in Aryl-Alkyl Cross-Coupling Reactions
作者:Andreas Greb、Jian-Siang Poh、Stephanie Greed、Claudio Battilocchio、Patrick Pasau、David C. Blakemore、Steven V. Ley
DOI:10.1002/anie.201710445
日期:2017.12.22
Coupling of readily available boronicacids and diazo compounds has emerged recently as a powerful metal-free carbon-carbon bond forming method. However, the difficulty in forming the unstable diazo compound partner in a mild fashion has hitherto limited their general use and the scope of the transformation. Here, we report the application of oxadiazolines as precursors for the generation of an unstable