作者:Soo Y. Ko、Joanne Lerpiniere、Ian D. Linney、Roger Wrigglesworth
DOI:10.1039/c39940001775
日期:——
The synthesis of the potent analgesic alkaloid epibatidine 1, employing as the key step a singlet oxygen reaction with 1-(2-chloro-5-pyridyl)cyclohexa-2,4-diene 2, is described.
作者:Enrichetta Albertini、Achille Barco、Simonetta Benetti、Carmela De Risi、Gian P. Pollini、Romeo Romagnoli、Vinicio Zanirato
DOI:10.1016/0040-4039(94)88492-7
日期:1994.12
(±)-1α-Nitro-2β-[3-(6-chloropyridyl)]-cyclohexanone, a key intermediate for a stereocontrolled synthesis of the alkaloid epibatidine, possessing a 7-azanorbornane structure to which is attached, in an exo-orientation, a 5-(2-chloropyridyl) substituent, has been prepared either by Diels-Alder reaction or tandem Michael reaction by way of 5-(2-nitrovinyl)-2-chloropyridine as common starting material