title: Diisoprop-yl{2-[2-(2-oxopyrrolidin-1-yl)acetamido]eth-yl}ammonium hydrogen sulfate.
abstract: The structure of the title compound, C(14)H(28)N(3)O(2) (+)·HSO(4) (-), a nootropic drug (pramiracetam) investigated for cognition-enhancing properties, is closely similar to that of the previously determined acetonitrile solvate, both structures being characterized by the presence of ribbons of hydrogen-bonded ions. The pyrrolidine ring adopts an envelope conformation.
authors.forename: Massimo
authors.initials: M
authors.lastname: Bambagiotti-Alberti
authors.forename: Gianluca
authors.initials: G
authors.lastname: Bartolucci
authors.forename: Bruno
authors.initials: B
authors.lastname: Bruni
authors.forename: Silvia A
authors.initials: SA
authors.lastname: Coran
authors.forename: Massimo
authors.initials: M
authors.lastname: Di Vaira