pulcherriminic acid
pulcherriminic acid
A pyrazine <em>N</em>-oxide that is pyrazine-1,4-dioxide substituted at positions 2 and 5 by hydroxy groups and at positions 3 and 6 by isobutyl groups. Formed by oxidative aromatisation of cyclo(<small>L</small>-leucyl-<small>L</small>-leucyl).