Syntheses of (S)-(−)-pindolol and [3′-13C]-(R)-(−)-pindolol utilizing a lanthanum-lithium-(R)-BINOL ((R)-LLB) catalyzed nitroaldol reaction
作者:Hiroaki Sasai、Yoichi M.A. Yamada、Takeyuki Suzuki、Masakatsu Shibasaki
DOI:10.1016/s0040-4020(01)89540-5
日期:1994.1
An efficient synthesis of (−)-pindolol, an effective β-blocker, has been achieved utilizing a lanthanum-lithium-(R)-BINOL ((R)-LLB) catalyzed nitroaldol reaction as a key step. This methodology was applicable to a synthesis of 13C-labeled (−)-pindolol, which would be useful as a biological tool for tracing the metabolism of β-blocker and 5-HT1A receptor antagonist. The mechanistic aspects of the LLB
利用镧-锂-(R)-BINOL((R)-LLB)催化的硝基醛醇反应作为关键步骤,已经实现了有效的β-受体阻滞剂(-)-pindolol的有效合成。该方法学适用于13 C标记的(-)-哌多洛尔的合成,该合成物可用作追踪β受体阻滞剂和5-HT 1A受体拮抗剂代谢的生物学工具。还讨论了LLB催化的硝基羟醛反应的机理。