Figure 1. Synthesis of 6-aryl-4-sec.amino-2-oxo-2H-pyran-3-carbonitriles 1 and 2-amino-5-aryl-4-sec.amino-1-yl-benzo[h]quinoline-6-carbonitriles 3a.
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.