Novel 19-nor-6,6-ethylene-3-oxo-20-spirox-4-enes (or 4,14-dienes) are provided, prepared from the corresponding 19-nor-3-oxo-spirox-4-enes (or 4,14-dienes). The compounds are useful as orally-effective antiestrogens, and are also anabolic agents having low androgenicity.
