Detection of N-acetyl derivative of 2-amino-6-methyldipyrido[1,2-a:3',2'-d]imidazole (Glu-P-1) in Glu-P-1-injected rats.

In order to confirm in vivo N-acetylation of 2-amino-6-methyl-dipyrido[1,2-a:3',2'-d]imidazole (Glu-P-1) in rats, we developed a new high-performance liquid chromatography (HPLC) method for detecting the N-acetyl derivative of Glu-P-1 in animal organs. Using this method, N-acetyl-Glu-P-1 was detected in rat liver, kidney and intestinal contents 6 h after intraperitoneal injection of Glu-P-1. This fact provides evidence to support in vivo N-acetylation of Glu-P-1 in rats.