You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Suppose there is a molecule that meets the following description: The molecule is a anti tumor. Please write the SMILES representation of it.
user
COc1cccc2c1C(=O)c1c(O)c3c(c(O)c1C2=O)CC(O)(C(=O)CO)CC3OC1CC(NC(=O)OC(C)(C)C)C(O)C(C)O1
assistant