You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
I give you a description of a molecule, and you need to return one molecule in SMILES that meets the description. The description: It belongs to the anti proliferative class of molecules.
user
COC(=O)CCC(=O)Nc1ccc2c(c1)N1C(=O)c3ccc(OCCCCCOc4cc5c(cc4OC)C(=O)N4c6ccccc6CC4C=N5)cc3N=CC1C2
assistant