You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a anti tumor.
user
CCc1c2c(nc3cccc(CCC(=O)OC)c13)-c1cc3c(c(=O)n1C2)COC(=O)C3(O)CC
assistant