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: The molecule is a anti bodydrug conjugate and belongs to the cancer treatment class of molecules.
user
CCCCCCC(CCCCC)C1CC(=O)N(CCOCCOCC(=O)C(C)CCC)C1=O
assistant