Cyclopropanation Reactions for the Synthesis of 2-Azabicyclo[4.1.0]heptane Derivatives with Nitric Oxide Synthase Inhibitory Activity
作者:Irene Suárez del Villar、Ana Gradillas、Angel Gómez-Ovalles、Ricardo Martínez-Murillo、Alfredo Martínez、Javier Pérez-Castells
DOI:10.1246/cl.2008.1222
日期:2008.12.5
Synthesis of new bicyclic structures containing cyclopropanes, related to selective iNOS inhibitor ONO-1714, is described. We have evaluated the effect of the compounds obtained on the production of nitric oxide in lipopolysaccharide and interferon-gamma stimulated mouse peritoneal macrophages and on in vitro iNOS activity assays.
Organocatalytic Enantioselective Functionalization of Cyclic α-Hydroxyamides: Access to Chiral Cyclic Imides and Azapolycyclic Compounds
作者:Xiao-Qian Zhang、Yuan-Ren Ma、Yan-Kai Liu
DOI:10.1021/acs.orglett.3c03182
日期:2023.11.24
convert unfunctionalized cyclic α-hydroxyamides into chiral cyclic α-hydroxyamides by reacting with vinyl sulfones, which could be used as versatile azacyclic synthons in the following sequences: (1) as the precursors of cyclic N-acyliminium ions to prepare natural productlike chiral azapolycyclic compounds under acidic conditions and (2) to construct chiral cyclicimides bearing unilateral substituents