1,2-Dialkyl-4(3 H )-Quinazolinones in the Defensive Secretion of a Millipede ( Glomeris marginata )

Abstract
Two crystalline components isolated from the defensive secretion of the glomerid millipede, Glomeris marginata , are identified as 1-methyl-2-ethyl-4( 3 H )-quinazolinone and 1,2-dimethyl-4( 3 H )-quinazolinone. These heterocyclic compounds bear a close structural resemblance to arborine, the chief alkaloid of the Indian medicinal plant, Glycomis arborea Correa.