Abstract: Isoflavone derivatives are provided comprising a carboxyalkylene moiety linked via its alkylene chain to the aromatic ring and via its carboxy group to an aminoalkyleneamino residue, which, in turn, is covalently linked to a functional group B. The isoflavone derivatives are preferably derived from biochanin A, genistein, and daidzein, and the functional group B is preferably an amino protecting group. These isoflavone derivatives are useful for treating or preventing diseases or disorders associated with estrogen receptor functioning.

Abstract: Isoflavone derivatives are provided comprising a carboxyalkylene moiety linked via its alkylene chain to the aromatic ring and via its carboxy group to an aminoalkyleneamino residue, which, in turn, is covalently linked to a functional group B. The isoflavone derivatives are preferably derived from biochanin A, genistein, and daidzein, and the functional group B is preferably an amino protecting group. These isoflavone derivatives are useful for treating or preventing diseases or disorders associated with estrogen receptor functioning.

Abstract: The present invention discloses novel isoflavone conjugates and their use for affinity targeting of drugs, imaging and detection agents to cells having estrogen receptors, particularly estrogen receptors subtype ?.

Abstract: The present invention discloses novel derivatives of isoflavones, in particular carboxy derivatives of isoflavones, active as selective estrogen receptor modulators, and uses of the carboxy derivatives for the treatment of estrogen-related conditions. The present further discloses conjugates of these carboxy derivatives of isoflavones and their use for affinity targeting of drugs, imaging and detection agents to cells having estrogen receptors, particularly estrogen receptors subtype ?.

Abstract: A monoclonal antibody to a steroid hormone is used for the isolation from a combinatorial peptide library of a peptide mimicking the biological activity of said steroid hormone. Peptides having estrogenic-like and progestational-like activity were synthesized and assayed for their ability to compete with the respective steroid hormone for binding to the monoclonal antibody and for binding to said steroid hormone receptor. Peptides having estrogenic-like activity were found to be selective to estrogen receptor alpha or beta and thus may have more clinical applications than the non-selective steroid hormone estradiol.