The present work demonstrates that the 1,3-diazetidifie-2,4-dione nucleus is effective as a scaffold of serine protease inhibitors. Compound 1 displayed high activity against human cathepsin G and alpha -chymotrypsin (0.39, 0.69 nM). Compound 6 exhibited 0.85 nM inhibition of human chymase. Compound 10 was a selective inhibitor against human neutrophil elastase. (C) 2001 Elsevier Science Ltd. All rights reserved.
Palladium-Catalyzed Intramolecular Insertion of Alkenes into the Carbon–Nitrogen Bond of β-Lactams
作者:Akira Yada、Satoshi Okajima、Masahiro Murakami
DOI:10.1021/jacs.5b05308
日期:2015.7.15
The carbon-nitrogen bond of beta-lactams is cleaved by palladium(0), and an alkene is intramolecularly inserted therein. The following reductive elimination produces nitrogen-containing benzo-fused tricycles in good to high yields.