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 estrogen receptor modulator and belongs to the cancer treatment class of molecules.
user
CC1Cc2c([nH]c3ccccc23)C(c2c(F)cc(OC3CCN(CCCF)C3)cc2F)N1C12CC(C1)C2
assistant