Figure 2.
Retrosynthetic analysis of 3,4-dioxygenated 5-hydroxy-4-aryl-quinolin-2(1H)-ones.
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.