Selective estrogen receptor modulators, as well their related
pharmaceutical compositions and methods of use, are provided herein.
These estrogen receptor modulators include compounds that primarily
exhibit estrogen receptor antagonist activity or primarily exhibit
selective estrogen receptor antagonist and agonist activity, i.e., SERM
activity, in specific tissue types. Particular embodiments provide
compounds that behave as NeuroSERMs promoting neurotrophism and
neuroprotection in brain tissue. These NeuroSERMs represent a subset of
the modulators compounds provided herein that can cross the
blood-brain-barrier and exert estrogen receptor agonist-like effects in
the brain. The compounds should be useful for treating a variety of
diseases, particularly estrogen receptor-mediated diseases and disorders,
such as osteoporosis, breast and endometrial cancers, atherosclerosis and
Alzheimer's disease.