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 cancer treatment and is estrogen receptor modulator.
user
CC1Cc2c([nH]c3ccccc23)C(c2c(F)cc(OCCN3CCCC3)cc2F)N1C12CC(C1)C2
assistant