Table 1. Syntheses of Methyl 4-Amino-6-(2-aminophenyl)-3-chloropicolinate Amide (8–26) Derivatives and Related Urea and Thiourea Derivatives (27–37), Respectivelya.
a
All products were characterized by NMR spectroscopy and mass spectrometry.
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.