The synthesis of a tritium, carbon-14, and stable isotope-labeled cathepsin C inhibitors
作者:Paul Allen、Ryan A. Bragg、Moya Caffrey、Cecilia Ericsson、Michael J. Hickey、Lee P. Kingston、Charles S. Elmore
DOI:10.1002/jlcr.3483
日期:2017.2
selective cathepsin C inhibitor, tritium, carbon-14, and stable isotope-labeled materials were required. The synthesis of tritium-labeled methanesulfonate 5 was achieved via catalytic tritiolysis of a chloro precursor, albeit at a low radiochemical purity of 67%. Tritium-labeled AZD5248 was prepared via a 3-stage synthesis, utilizing amide-directed hydrogen isotope exchange. Carbon-14 and stable isotope-labeled
作为旨在开发高效选择性组织蛋白酶 C 抑制剂的药物化学计划的一部分,需要氚、碳 14 和稳定同位素标记材料。氚标记的甲磺酸盐 5 的合成是通过氯前体的催化氚分解实现的,尽管放射化学纯度较低,为 67%。氚标记的 AZD5248 是通过三阶段合成制备的,利用酰胺导向的氢同位素交换。通过对药物化学合成路线的修改,成功制备了碳14和稳定同位素标记的AZD5248,使可用的标记中间体成为可能。