You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Based on the given information, generate a molecule that meets the desired specifications: The molecule is a tubulin inhibitor and belongs to the cancer treatment class of molecules.
user
Cn1cc(-c2ccc(CCCC(=O)Nc3cccnc3)cc2)ccc1=O
assistant