179742-05-3Relevant articles and documents
Synthesis of Medium-Ring-Sized Benzolactams by Using Strong Electrophiles and Quantitative Evaluation of Ring-Size Dependency of the Cyclization Reaction Rate
Kurouchi, Hiroaki,Ohwada, Tomohiko
, p. 876 - 901 (2019/12/30)
Benzolactams with medium-sized rings were synthesized via the electrophilic aromatic substitution reaction of carbamoyl cations (R1R2N+═C═O) in good to high yields without dilution. These reactions were utilized to quantitatively examine the extent of retardation of medium-sized ring formation, compared to five- or six-membered ring formation. The order of reaction rates of formation of cyclic benzolactams is six- > five- > seven- > eight- > nine-membered ring at 25 °C. The present reaction provides a route to eight- A nd nine-membered benzolactams.
A novel series of urea-based peptidomimetic calpain inhibitors
Sanders, M. Lee,Donkor, Isaac O.
, p. 1965 - 1968 (2007/10/03)
A series of peptide aldehyde derivatives in which the P2 chiral carbon has been replaced with nitrogen were synthesized as urea-based peptidomimetic inhibitors of μ-calpain. The compounds mirrored the general SAR of peptidyl aldehyde calpain inhibitors but displayed greater selectivity for μ-calpain over cathepsin B.
