Process development of the synthesis of the orally active poly(ADP-ribose)polymerase inhibitor niraparib is described. Two new asymmetric routes are reported, which converge on a high-yielding, regioselective, copper-catalyzed N-arylation of an indazole derivative as the late-stage fragment coupling step. Novel transaminase-mediated dynamic kinetic resolutions of racemic aldehyde surrogates provided
描述了口服活性聚(
ADP-
核糖)聚合酶
抑制剂尼拉帕利布的合成方法的发展。报道了两条新的不对称路线,它们收敛于
吲唑衍
生物的高产率,区域选择性,
铜催化的N-芳基化,作为后期片段偶联步骤。外消旋醛替代物的新型转
氨酶介导的动态动力学拆分提供了3-芳基-
哌啶偶联伴侣的对映选择性合成。通过脱保护和盐复分解以分离所需的结晶盐形式,可实现C–N交叉偶联产物向最终A
PI的转化。