A compound for use in the treatment of a disease ameliorated by the inhibition of Notum of formula (I): (I)
一种用于治疗通过抑制公式(I)中的Notum改善的疾病的化合物:(I)
Tuning chemoselectivity in <i>O</i>-/<i>N</i>-arylation of 3-aryl-1,2,4-oxadiazolones with <i>ortho</i>-(trimethylsilyl)phenyl triflates <i>via</i> aryne insertion
作者:Lijing Zhou、Hongji Li、Wenge Zhang、Lei Wang
DOI:10.1039/c8cc00124c
日期:——
A finely tunable chemoselectivity in arylation of 3-aryl-1,2,4-oxadiazolones with ortho-(trimethylsilyl)phenyl triflates is reported, including silver-catalysed O-arylation and metal-free N-arylation.
Despite their tremendous synthetic and pharmaceutical utility, primary azaaromatic amines remain elusive for access based on a generally applicable C–H functionalization strategy. An oxadiazolone-enabled approach is reported for convenient entry into N-unsubstituted 1-aminoisoquinolines through Co(III)-catalyzed redox-neutral, step-, atom-, and purification-economic C–H functionalization with alkynes
Cobalt‐Catalyzed Temperature‐Dependent Annulation of 3‐Aryl‐1,2,4‐oxadiazolones with 1,3‐Diynes: An Approach to π‐Conjugated Molecules
作者:Wenge Zhang、Hongji Li、Lei Wang
DOI:10.1002/adsc.201801165
日期:2019.6.18
A Cobalt‐catalyzedannulation of 3‐aryl‐1,2,4‐oxadiazolones with 1,3‐diynes has been developed, in which reaction temperature variation considerably affects the cyclization orientation and afforded structurely distinctive products in good yields and high regioselectivity. Additionally, the late‐stage transformation of the cyclization products into N‐containing heterocycles is also demonstrated.
Transition-metal-catalyzed, directed intermolecular C–Hbond functionalization is synthetically useful but heavily underexplored in multiheteroatom heterocycle synthesis. Herein we report a cobalt catalytic method for the formation of a three-nitrogen-bearing benzotriazine scaffold via the coupling of arylhydrazine and oxadiazolone. This synthetic protocol features a low-cost base metal catalyst, a