Figure 2.
Example of commercial drugs with N-fused bicyclic imidazo-azines. The imidazo-azine core is highlighted in bold.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.