You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Build a molecule that meets the requirement: The molecule is anti tumor.
user
Nc1nc(N)c2c(CCSc3ccc(C(=O)NC(CCC(=O)O)C(=O)O)cc3)c[nH]c2n1
assistant