Fig. 1From: Synthesis of a benzoxazinthione derivative of tanaproget and pharmacological evaluation for PET imaging of PR expressionStructures of steroid hormone receptor radioligands: 16α-[18F]fluoro-17β-estradiol ([18F]FES), 21-[18F]fluorofuranyl-norprogesterone ([18F]FFNP), [18F]fluoropropyl-Tanaproget ([18F]FPTP), [18F]fluoromethyl-Tanaproget ([18F]FMTP) and [11C]Tanaproget. Substitutive nomenclature of benzoxazin(thi)one derivatives is demonstrated using [18F]FMTPBack to article page