6533b828fe1ef96bd12883eb

RESEARCH PRODUCT

Double asymmetric intramolecular aza-Michael reaction: a convenient strategy for the synthesis of quinolizidine alkaloids.

Javier TorresMarcos EscolanoCarlos Del PozoGloria Alzuet PiñaMaría Sánchez-roselló

subject

Turn (biochemistry)chemistry.chemical_compoundQuinolizidineStereochemistryChemistryIntramolecular forceOrganic ChemistrySalt metathesis reactionMichael reactionTotal synthesisMoietyPhysical and Theoretical ChemistryBiochemistry

description

A new methodology to access the quinolizidine skeleton in an asymmetric fashion was devised. It involves two consecutive intramolecular aza-Michael reactions of sulfinyl amines bearing a bis-enone moiety, in turn generated by a monodirectional cross metathesis reaction. The sequence, which takes place with excellent yields and diastereocontrol, was applied to the total synthesis of alkaloids lasubine I and myrtine.

10.1039/d1ob01488ahttps://pubmed.ncbi.nlm.nih.gov/34581390