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