E-17α-(2-[125I]IODOVINYL)-19-NORTESTOSTERONE: THE SYNTHESIS OF A GAMMA-EMITTING LIGAND FOR THE PROGESTERONE RECEPTOR.

Abstract
We have synthesized a gamma-emitting steroid, E-17.alpha.-(2-[125I]iodovinyl)-19-nortestosterone (E-IVNT), which is a useful ligand for the sensitive and accurate assay of the progesterone receptor. The synthetic scheme is rapid and is performed with readily available materials. This compund, [125I]E-IVNT, is stable and binds with high affinity to the progesterone receptor.