Novel C-17-Heteroaryl Steroidal CYP17 Inhibitors/Antiandrogens: Synthesis, in Vitro Biological Activity, Pharmacokinetics, and Antitumor Activity in the LAPC4 Human Prostate Cancer Xenograft Model
作者:Venkatesh D. Handratta、Tadas S. Vasaitis、Vincent C. O. Njar、Lalji K. Gediya、Ritesh Kataria、Pankaj Chopra、Donnell Newman、Rena Farquhar、Zhiyong Guo、Yun Qiu、Angela M. H. Brodie
DOI:10.1021/jm040202w
日期:2005.4.1
were rationally designed and synthesized. The key reaction for synthesis of the benzoazoles involved the nucleophilic vinylic "addition-elimination" substitution reaction of 3beta-acetoxy-17-chloro-16-formylandrosta-5,16-diene (2) and benzoazole nucleophiles, while that for synthesis of pyrazines involved palladium-catalyzed cross-coupling reaction of 17-iodoandrosta-5,16-dien-3beta-ol (13) with tributylstannyl
合理设计和合成了新的化学实体,甾类C-17苯并唑(5、6、9和10)和吡嗪(14和15)。合成苯并恶唑的关键反应涉及亲核性乙烯基“加成消除”取代反应,该反应包括3β-乙酰氧基-17-氯-16-甲醛基-5,16-二烯(2)和苯并恶唑亲核反应,而吡嗪的合成反应涉及钯催化的17-碘-雄甾烯5,16-dien-3beta-ol(13)与三丁基锡烷基二嗪的交叉偶联反应。已显示某些化合物是人CYP17酶的有效抑制剂,以及野生型和突变雄激素受体(AR)的有效拮抗剂。最有效的CYP17抑制剂是3beta-hydroxy-17-(1H-benzimidazole-1-yl)androsta-5,16-diene(5,代号VN / 124-1),3beta-hydroxy-17-(5(1 )-嘧啶基)androsta-5,16-二烯(15)和17-(1H-苯并咪唑-1-基)androsta-4,16-dien