Hi again, I figure it out! 
I put the AnimNode in the main module and left only the AnimGraphNode in the editor module, I was trying to do it, but gave me a compilation error.
That’s because I had forgotten to inform a macro export for my AnimNode class, like this “MYGAME_API CLASSNAME”, then the editor module couldn’t access the class in the main module, and was also necessary to put my main module in PublicDependencyModuleNames in Build.cs from the editor module .
So now it works!
Sorry for my english, I hope this help someone.