You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
The molecule is a anti body and belongs to the cancer treatment class of molecules, with the characteristic of being anti body drug conjugate. Use the above information to create a molecule.
user
CC(C)C(=O)C(CCCCNC(N)=O)NC(=O)C(NC(=O)CN1C(=O)C=CC1=O)C(C)C
assistant