Synthesis of high-affinity fluorine-substituted ligands for the androgen receptor. Potential agents for imaging prostatic cancer by positron emission tomography
作者:Aijun Liu、Kathryn E. Carlson、John A. Katzenellenbogen
DOI:10.1021/jm00089a024
日期:1992.5
for AR. Derivatives of the natural androgens (T and DHT) as well as MNT have little affinity for other steroid hormone receptors (progesterone and mineralocorticoid receptors), whereas the Mib and R1881 derivatives have somewhat greater heterologous binding. With sex steroid binding protein, a human serum binding protein, the pattern of binding affinities is nearly the reverse, with derivatives of Mib
我们已经制备了九种在C-16或C-20处被氟取代的雄激素,以评估其潜力,并在用正电子发射放射性核素氟18标记时作为前列腺癌的正电子发射断层显像(PET)成像剂(t1 / 2 = 110分钟)。这些化合物代表以下雄激素的成员:睾丸激素(T),5α-二氢睾丸激素(DHT),7α-甲基-19-睾丸激素(MNT),米泊洛酮(Mib)和甲泼莫隆(R1881)。所有这些化合物都是通过适当的雄激素前体官能化制备的,并且开发了合成路线以允许在合成后期通过氟离子置换反应引入氟,这是在氟18标记的化合物中制备这些化合物所需的形成。我们还制备了四个雄激素,其中C-3羰基或17个β-羟基被氟取代。大多数氟取代的雄激素对雄激素受体(AR)表现出高亲和力,尽管氟取代将其亲和力降低了一小部分。氟取代C-3或C-17处的氧官能团的雄激素都没有对AR有实质性的亲和力。天然雄激素的衍生物(T和DHT)以及MNT与其他类固醇激