Synthesis and in vitro evaluation of pteridine analogues as monoamine oxidase B and nitric oxide synthase inhibitors

Autor: Sarel F. Malan, Louis H.A. Prins, Jacobus P. Petzer
Rok vydání: 2009
Předmět:
Zdroj: Bioorganicmedicinal chemistry. 17(21)
ISSN: 1464-3391
Popis: Monoamine oxidase B (MAO-B) and nitric oxide synthase (NOS) have both been implicated in the pathology of neurodegenerative diseases. In an attempt to design dual-target-directed drugs that inhibit both these enzymes, a series of pteridine-2,4-dione analogues were synthesised. The compounds were found to be relatively weak NOS inhibitors but showed promising MAO-B activity with 6-amino-5-[( E )-3-(3-chloro-phenyl)-prop-2-en-( E )-ylideneamino]-1,3-dimethyl-1 H -pyrimidine-2,4-dione and 6-[( E )-2-(3-chloro-phenyl)-vinyl]-1,3-dimethyl-1 H -pteridine-2,4-dione inhibiting MAO-B with IC 50 values of 0.602 and 0.314 μM, respectively. The pteridine-2,4-dione analogues thus show promise as scaffolds for the development of potent reversible MAO-B inhibitors and as observed in earlier studies, the most potent inhibitors were obtained with 3-chlorostyryl substitution.
Databáze: OpenAIRE