You are a chemist. Now you are given a description of a molecule. Please generate a molecule that meets the description.
system
Come up with a molecule based on the description: The molecule is a cancer treatment member of the anti bodydrug conjugate class.
user
COc1cc2c(cc1OCCCCCOc1cc3c(cc1OC)C(=O)N1C=C(C)CC1C(O)N3C(=O)OCc1ccc(NC(=O)C(C)NC(=O)C(NC(=O)CCCCCN3C(=O)C=C(Oc4ccc(C#N)cc4)C3=P)C(C)C)cc1)N=CC1CC(C)=CN1C2=O
assistant