Tani, Chemical and pharmaceutical bulletin, 1959, vol. 7, p. 930,933
作者:Tani
DOI:——
日期:——
Stereospecific approach to the synthesis of quinine and related alkaloids
作者:D. L. Coffen、T. E. McEntee
DOI:10.1039/c29710000539
日期:——
A stereospecificsynthesis of syn-5-hydroxyalkyl-3-quinuclidines is described and their feasibility as intermediates in a new approach to the synthesis of cinchona alkaloids illustrated.
作者:Shi, Qiu、Huang, Xiaofeng、Yang, Ruizhi、Liu, Wenbo H.
DOI:10.1039/d4sc03739a
日期:——
regioselectivity. By identifying an enzyme-mimic pocket-type urea activation reagent, we report a general platform for pyridine C-4 functionalization. Both ionic and radical nucleophiles can be incorporated to achieve the alkylation and arylation. Notably, the highly regioselective C-4 radical arylation is disclosed for the first time. The broad scope of nucleophiles and pyridines renders this platform applicable