Steroid receptor analogs having good binding affinity for steroid receptors and “binding arms” for chelation to metal species such as radionuclides are prepared with all carbon backbones. The analogs very closely approximate the geometries present in natural steroids which are important for effective binding to receptor sites. In addition, metal species binding arms are strategically incorporated into the analog structure in a manner that does not disrupt the analog's receptor binding efficacy. Furthermore, the metal species binding arms may be designed to chelate one or more radionuclides, including radionuclides effective in diagnostic or therapeutic applications. With incorporation of an appropriate steroid receptor binding group, these metal species-bound analogs may be used, for example, to bind androgen receptor sites in the diagnosis or treatment of prostate cancer, or estrogen receptor sites in the diagnosis or treatment of breast and ovarian cancers.
类
固醇受体类似物具有良好的结合亲和力,用于与
金属物种(如放射性核素)螯合的“结合臂”是通过全碳骨架制备的。这些类似物非常接近天然类
固醇中存在的几何结构,这对于有效结合受体位点至关重要。此外,
金属物种结合臂被策略性地并入类似物结构中,以一种不会破坏类似物受体结合效力的方式。此外,
金属物种结合臂可以设计成螯合一个或多个放射性核素,包括在诊断或治疗应用中有效的放射性核素。通过合适的类
固醇受体结合基团的引入,这些
金属物种结合的类似物可以用于例如结合雄激素受体位点以诊断或治疗前列腺癌,或结合
雌激素受体位点以诊断或治疗乳腺癌和卵巢癌。