A New Approach in Cancer Treatment: Discovery of Chlorido[<i>N</i>,<i>N</i>′-disalicylidene-1,2-phenylenediamine]iron(III) Complexes as Ferroptosis Inducers
generate lipid-based ROS and induceferroptosis in leukemia and neuroblastoma cell lines. The extent of ferroptosis on the mode of action is regulated by simple modifications of the substituents at the 1,2-phenylenediamine moiety. In HL-60 cells, the unsubstituted lead exclusively caused ferroptosis. For instance, a 4-F substituent shifted the mode of action toward both ferroptosis and necroptosis, while
N-Heterocyclic Carbene-Catalyzed Umpolung of Imines for the Enantioselective Synthesis of Dihydroquinoxalines
作者:Tamal Kanti Das、Avik Ghosh、Kuruva Balanna、Pradipta Behera、Rajesh G. Gonnade、Udaya Kiran Marelli、Abhijit Kumar Das、Akkattu T. Biju
DOI:10.1021/acscatal.9b00737
日期:2019.5.3
N-heterocyclic carbene (NHC) organocatalysis is widely employed for the umpolung of aldehydes and recently to the umpolung of Michael acceptors and aldimines. Described herein is the NHC-organocatalyzed umpolung of aldimines for the enantioselectivesynthesis of nitrogen heterocycles. The bisimines generated from the condensation of 1,2-phenylenediamines and salicylaldehydes undergo intramolecular