2003
The absolute configuration of cuauhtemone and related compounds. Torres-Valencia J. M., Quintero-Mogica D. L., León G. I., Suárez-Castillo O. R., Villagómez-Ibarra J. R., Maldonado E., Cerda-García-Rojas C. M., Joseph-Nathan P. DOI: http://dx.doi.org/10.1016/S0957-4166(03)00042-9
Abstract
The absoluteconfiguration of cuauhtemone, a eudesmane-type sesquiterpene isolated from Pluchea species (Asteraceae), has been revised from 1 to 2 by chemical correlation with (R)-(+)-2-methyl-1,2-butanediol 3 through the naturally occurring 2,3-epoxy-2-methylbutanoate derivative 4. The relative stereochemistry of 4 was confirmed by X-ray diffraction analysis. The obtained data are also useful for reconsideration of the absoluteconfigurations of a relevant group of natural products, which were elucidated according to the stereochemistry of cuauhtemone.
Total Syntheses of Five Indole Alkaloids from the Marine Bryozoan Flustra foliacea
Synthesis of Bromoindole Alkaloids from Laurencia brongniartii
Conformational studies on indole alkaloids from Flustra foliacea by NMR and molecular modeling
Synthesis of 6-bromo-2-arylindoles using 2-iodobenzoic acid as precursor
One-potsynthesis of conformationallyrestrictedspirooxindoles
Configuration, stereodynamics and crystal structure of 3-substituted-2-oxofuro[2,3-b]indoles
Regioselective Synthesis of 3-Indolyl(alkoxy)acetates
Transesterifications mediated by t-BuNH2
Role of lipid peroxidation in biliary obstruction in the rat