Synthesis and biological evaluation of amidine, guanidine, and thiourea derivatives of 2-amino(6-trifluoromethoxy)benzothiazole as neuroprotective age...
Basic Information
ID: ALA1156259
Journal: J Med Chem
Title: Synthesis and biological evaluation of amidine, guanidine, and thiourea derivatives of 2-amino(6-trifluoromethoxy)benzothiazole as neuroprotective agents potentially useful in brain diseases.
Authors: Anzini M, Chelini A, Mancini A, Cappelli A, Frosini M, Ricci L, Valoti M, Magistretti J, Castelli L, Giordani A, Makovec F, Vomero S.
Abstract: A series of amidine, thiourea, and guanidine derivatives of 2-amino-6-(trifluoromethoxy)benzothiazole termed 2, 3, and 4, respectively, and structurally related to riluzole, a neuroprotective drug in many animal models of brain disease, have been synthesized. The biological activity of compounds 2a-e, 3a-f, and 4a,b was preliminarily tested by means of an in vitro protocol of ischemia/reperfusion injury. The results demonstrated that 2c and 3a-d significantly attenuated neuronal injury. Selected for testing of their antioxidant properties, compounds 3a-d were shown to be endowed with a direct ROS scavenging activity. Compounds 3b and 3d were also evaluated for their activity on voltage-dependent Na(+) and Ca(2+) currents in neurons from rat piriform cortex. At 50 microM, compound 3b inhibited the transient Na(+) current to a much smaller extent than riluzole, whereas 3d was almost completely ineffective.
CiteXplore: 19950903
DOI: 10.1021/jm901375r
Patent ID: ┄