Chemistry of buprestins A and B. Bitter principles of jewel beetles (Coleoptera: Buprestidae)

Abstract

The isolation an structural elucidation of β-D- glucopyranose 1,2,6- tris (pyrrole-2-carboxylate) ( buprestin A) (1) and β-D- glucopyranose 6- (4-hydroxybenzoate) 1,2-bis(pyrrole-2-carboxylate) ( buprestin B) (3), bitter principles of beetles of the family Buprestidae , are reported.