Synthesis of bridged bicyclic hydrazines via endocyclic N-acylhydrazonium intermediates: A novel route to the 1-Azatropane skeleton
作者:Floris P.J.T Rutjes、Henk Hiemstra、Frank O.H Pirrung、W.Nico Speckamp
DOI:10.1016/s0040-4020(01)80199-x
日期:1993.1
Bicyclic molecules with the 1,7-diaza-6,6-dimethylbicyclo[2.2.1]heptane and 1,8-diaza-7,7-dimethylbicyclo[3.2.1]octane (1-aza-7,7-dimethyltropane) skeleton are shown to be efficiently synthesized via cyclization reactions of endocyclic N-acylhydrazonium intermediates. By using a protected β-ketoester as the internal nucleophile, azacocaine analogues are also accessible via this methodology.
具有1,7-二氮杂-6,6-二甲基双环[2.2.1]庚烷和1,8-二氮杂-7,7-二甲基双环[3.2.1]辛烷(1-氮杂-7,7-二甲基托烷)的双环分子骨架是通过内环N-酰基hydr中间体的环化反应有效合成的。通过使用受保护的β-酮酸酯作为内部亲核试剂,也可以通过这种方法获得氮杂可卡因类似物。