作者:Marlon Cowart、Elizabeth A. Kowaluk、Jerome F. Daanen、Kathy L. Kohlhaas、Karen M. Alexander、Frank L. Wagenaar、James F. Kerwin
DOI:10.1021/jm980073h
日期:1998.7.1
Nitric oxide (NO .) is an important biomodulator of many physiological processes. The inhibition of inappropriate production of NO . by the isoforms of nitric oxide synthase (NOS) has been proposed as a therapeutic approach for the treatment of stroke, inflammation, and other processes. In this study, certain 2-nitroaryl-substituted amino acid analogues were discovered to inhibit NOS. Analogues bearing a 5-methyl substituent on the aromatic ring demonstrated maximal inhibitory potency. For two selected inhibitors, investigation of the kinetics of the enzyme showed the inhibition to be competitive with L-arginine. Additionally, functional NOS inhibition in tissue preparations was demonstrated.