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 neoplastic class of molecules.
user
COC1C(=O)C2(C)C(OC)CC3OCC3(OC(C)=O)C2C(OC(=O)c2ccccc2)C23OC(=O)OC2C(OC(=O)C(O)C(NC(=O)N(C)C)c2ccccc2)C(C)=C1C3(C)I
assistant