Zaleplon
Zaleplon is a pyrazolo[1,5-a]pyrimidine having a nitrile group at position 3 and a 3-(N-ethylacetamido)phenyl substituent at the 7-position. It has a role as an anticonvulsant, a central nervous system depressant, a sedative and an anxiolytic drug. It is a pyrazolopyrimidine and a nitrile.