Late Stage CH Activation of a Privileged Scaffold; Synthesis of a Library of Benzodiazepines
作者:Raysa Khan、Robert Felix、Paul D. Kemmitt、Simon J. Coles、Iain J. Day、Graham J. Tizzard、John Spencer
DOI:10.1002/adsc.201501009
日期:2016.1.7
has been formed by a microwave‐mediated late‐stage palladium‐catalysed arylation of 1,4‐benzodiazepines using diaryliodonium salts. This can also be applied to nordazepam (7‐chloro‐5‐phenyl‐1,3‐dihydro‐2H‐1,4‐benzodiazepin‐2‐one), the active metabolite of diazepam, and subsequent N‐alkylation and/or H/D exchange allows further diversification towards elaborated pharmaceuticals and their 3,3′‐deuterated
微波介导的后期钯催化的1,4芳基化反应形成了20多个5-(2-芳基苯基)-1,3-二氢-2 H -1,4-苯并二氮杂-2-酮的库。使用二芳基碘鎓盐的苯并二氮杂pine。这也可用于诺达西am(7-氯-5-苯基-1,3-二氢-2 H -1,4-苯并二氮杂-2-2-1 ),地西epa的活性代谢物以及随后的N-烷基化和/或H / D交换使精制药物及其3,3'-氘代类似物进一步多样化。