Anti cancer drug ECB-46.

If you Google this compound, you find a number of articles dealing with it such as this one:

http://www.forbes.com/sites/stevendelco/2015/06/01/are-some-of-the-best-cancer-pharmaceuticals-hiding-out-in-the-rainforests/2/#2f4344b7202e

When injected into a tumor, ECB-46 causes the blood vessels of the tumor to self destruct, killing the tumor. Do you spot the problem? You have to find the tumor to inject it and when there are several tumors the task is very difficult.

What is more objectionable is the writer of the article claiming that evolution has caused plants to develop compounds that regulate the interaction of plants and animals.

That is of course nonsense.