학술논문

Structure Elucidation and Confirmation of Phloroglucinols from the Roots of Garcinia dauphinensisby Comparison of Experimental and Calculated ECD Spectra and Specific Rotations
Document Type
Article
Source
Journal of Natural Products; April 2021, Vol. 84 Issue: 4 p1163-1174, 12p
Subject
Language
ISSN
01633864; 15206025
Abstract
Eight phloroglucinols from Garcinia dauphinensiswere recently reported to have good to moderate antiplasmodial and anticancer activities, consistent with other phloroglucinol derivatives isolated from natural sources. Chiroptical properties were previously calculated and compared to experimental data for compound 2as a means to deduce its absolute configuration. Tentative assignments for the remaining compounds were also reported based on these data. In order to arrive at stereochemical assignments for phloroglucinols 1and 3–8, ECD spectra and specific rotations were computed for all stereoisomers of each compound. Molecular orbital analyses were also carried out for the most energetically favorable conformers of each compound. Absolute configurations are reported for all eight phloroglucinols for the first time.