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 breast cancer treatment.
user
Cc1ncsc1-c1ccc(CNC(=O)C2CC(O)CN2C(=O)C(NC(=O)COCCOC2CCN(CCOc3ccc(Cn4c(-c5ccc(O)cc5)c(C)c5cc(O)ccc54)cc3)CC2)C(C)(C)C)cc1
assistant