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.
General structural formula of dual-target VEGFR/c-Met kinase inhibitors (Most dual-target VEGFR/c-Met inhibitors can be divided into four parts: A, B, C and D. Part A: The main structural skeleton, mainly nitrogen-containing heterocycles. Part B: Benzene ring or substituted benzene ring; Part C: Usually meet the ‘5-atom regulations’. Part D; Mostly benzene ring, substituted benzene ring or substituted pyridine ring).
