FIGURE 4.
Chemical structures of derivatives of triptolide and celastrol. (A) Chemical structures of derivatives of triptolide. (B) Chemical structures of derivatives of celastrol.
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.