Intramolecular conjugate displacement: A general route to hexahydroquinolizines, hexahydroindolizines, and related [m, n, 0]-bicyclic structures with nitrogen at a …
... Volume: Page: ... Aldehyde 34 18 was made as reported, and the known compound 37 21 was obtained from N-Boc-(l)-alanine by ... 43 was also prepared by Wittig homologation of the appropriate aldehyde (Scheme 6), starting from racemic ester 40, 22 which was ...
