Diaryl-substituted ortho-carboranes as a new class of hypoxia inducible factor-1α inhibitors
作者:Hiroyuki Nakamura、Lisa Tasaki、Daisuke Kanoh、Shinichi Sato、Hyun Seung Ban
DOI:10.1039/c3dt52828f
日期:——
Diaryl-substituted ortho-carboranes 1 were synthesized from the corresponding alkynes by decaborane coupling under microwave-irradiated conditions with a combination of N,N-dimethylaniline and chlorobenzene. Among the compounds synthesized, 1a and 1d exhibited significant inhibition of hypoxia-induced HIF-1 transcriptional activity. Both compounds similarly suppressed hypoxia-induced HIF-1α accumulation in a concentration-dependent manner without affecting HIF-1α mRNA expression.
Coupled up: A new general palladium‐catalyzed procedure for the cross‐coupling of aryl and heteroaryltosylates is described. This highly versatile and efficient process can be used for the synthesis of a wide variety of functionalized alkynes (see scheme).