作者:Bonjoch, Josep、Quirante, Josefina、Linares, Ana、Bosch, Joan
DOI:——
日期:——
Studies on the Synthesis of Strychnos Indole Alkaloids. An Efficient Stereocontrolled Synthetic Route to 2,4,8- and 2,8,9-Trisubstituted 2-Azabicyclo[3.3.1]nonan-7-ones
A stereocontrolled four-step synthesis of polysubstituted functionalized morphans 7 and 8 from the 3,4-cis piperidine derivative 1 is reported. β-Keto ester 1 was converted to 4-(oxopentyl)piperidines 3, and then to the 2-cyano derivatives 4 and 5, which were cyclized to the title compounds 7 and 8.