Chemo- and site-selective hydrosilylation of α- or β-hydroxy amides using organocatalyst B(C6F5)3 and commercially available hydrosilanes is described. This transformation is operative under mild conditions and tolerates a wide range of functional groups. The reaction was applied for selective reduction of a specific amide group of the therapeutically important cyclic peptide cyclosporin A, demonstrating
描述了使用有机催化剂B(C 6 F 5)3和可商购的氢化硅烷的α-或β-羟基酰胺的化学和位置选择性氢化硅烷化。这种转化在温和的条件下是有效的,并且可以耐受各种官能团。该反应用于选择性还原治疗上重要的环肽环孢菌素A的特定酰胺基,证明了该催化方法在药物前导分子的后期结构转化中的潜在用途。