Synthesis of the napalilactone and pathylactone A spirocyclic skeleton

Terpenoids from Marine Soft Coral of the Genus Lemnalia: Chemistry and Biological Activities

Lemnalia is one of the most widely-distributed marine soft coral in tropical oceans and is known to produce novel terpenoids with a broad spectrum of biological activities. This review provides the first comprehensive overview of terpenoids produced by soft coral Lemnalia since their first discovery in 1974.

[bmIm]Br catalyzed tandem construction of C–C and C–O bonds: a concise, convenient and atom-economical strategy for the synthesis of spiropyranopiperidine derivatives

A versatile one-pot three component synthetic protocol for chiral heterocyclic scaffolds has been disclosed.

Enantioselective total synthesis of 1-epi-pathylactone A

[structure: see text]. The first enantioselective total synthesis of 1-epi-pathylactone A, 3, has been accomplished using a PhI(OAc)2-mediated domino reaction as a key step. No diastereomeric separation was required throughout the whole synthetic scheme presented in this paper. Comparison of 1H and 13C NMR spectral data of the synthetic product with the reported spectral data of natural pathylactone A, coupled with an X-ray crystallographic analysis, led to the conclusion that the C1 configuration in the original paper was erroneously ascribed to (R).