Enantiospecific Total Syntheses of Nuphar Piperidine Alkaloids, (-)-Anhydronupharamine, (-)-Nupharamine, (-)-Nuphenine and (+)-3-Epinupharamine
摘要:
A concise enantiospecific synthesis of nuphar piperidine alkaloids was achieved by employing a regioselective carbon-carbon bond cleavage reaction of the cyclopentane derivative, having a gamma-chloro carbonyl system, as a key reaction.
A concise enantiospecific synthesis of nuphar piperidine alkaloids: total synthesis of (–)-anhydronupharamine, (–)-nupharamine, (–)-nuphenine and (+)-3-epinupharamine
Enantiospecific syntheses of (–)-anhydronupharamine, (–)-nupharamine, (–)-nuphenine, and (+)-3-epinupharamine are achieved starting from (–)-or (+)-carvone as chiral sources, in which a regioselective reductive fragmentation of the cyclopentane derivatives and an intramolecular aza–Wittig reaction were involved as key reactions.
A concise enantiospecific synthesis of nuphar piperidine alkaloids was achieved by employing a regioselective carbon-carbon bond cleavage reaction of the cyclopentane derivative, having a gamma-chloro carbonyl system, as a key reaction.