A Facile Synthesis of cis-1-Methyl-1,2,3,3a,4,8b- hexahydropyrrolo[3,2-f]pyrindine, an Annulated Nicotine Analog
摘要:
[GRAPHICS]The title compound, 2, has been synthesized in 45% overall yield in six steps from 3-bromopyridine. The hexahydropyrrolo[3,2-f]pyrindine skeleton was constructed from key intermediate 5, via intramolecular azomethine ylide-alkene [3 + 2] cycloaddition. The present work constitutes a general method for rapid assembly of other related tricyclic nicotine analogues.
selective nAChRs-targeting ligands. Of the nicotine analogues that we have studied, the conformation-restricting ring B unit can be either a five-membered carbocycle, or a six-memberedcarbocycle or heterocycle. The present work constitutes a general method for rapid assembly of other related tricyclic nicotine analogues.
[GRAPHICS]The title compound, 2, has been synthesized in 45% overall yield in six steps from 3-bromopyridine. The hexahydropyrrolo[3,2-f]pyrindine skeleton was constructed from key intermediate 5, via intramolecular azomethine ylide-alkene [3 + 2] cycloaddition. The present work constitutes a general method for rapid assembly of other related tricyclic nicotine analogues.