An Efficient One-Step Synthesis of Heterobiaryl Pyrazolo[3,4-b]pyridines via Indole Ring Opening
摘要:
A mild one-step synthetic method to access privileged heterobiaryl pyrazolo[3,4-b]pyridines from indole-3-carboxaldehyde derivatives and a variety of aminopyrazoles has been developed. This novel method constructs heterobiaryls with the wide scope of substrate generality and excellent regioselectivity via indole ring opening.
An Efficient One-Step Synthesis of Heterobiaryl Pyrazolo[3,4-b]pyridines via Indole Ring Opening
摘要:
A mild one-step synthetic method to access privileged heterobiaryl pyrazolo[3,4-b]pyridines from indole-3-carboxaldehyde derivatives and a variety of aminopyrazoles has been developed. This novel method constructs heterobiaryls with the wide scope of substrate generality and excellent regioselectivity via indole ring opening.
Selective C-2 functionalization of N-protected and free indoles is reported. The ruthenium-catalyzed C-2 activation of indoles provided an easyaccess to cyclopentenylated indoles. Hydroheteroarylated bicyclic motifs were synthesized via iridium-catalyzed C-2 activation of NH indoles. The methodology was extended to different bicyclic adducts such as diaza- or urea-derived bicyclic olefins.
Discovery of a highly selective FLT3 kinase inhibitor from phenotypic cell viability profiling
作者:Sanghee Lee、Ala Jo、Seung Bum Park
DOI:10.1039/c2md20169k
日期:——
We discovered a novel heterobiaryl pyrazolopyridine skeleton as a selective FLT3 inhibitor from phenotype-based viability profiling and hypothesis-driven deconvolution.