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Updated: Jul 13, 2026

High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
EI/MS fragmentation of abieta-8,11,13-triene diterpenoid derivatives as a tool to identify swartziarboreols in
Celira Caparica Santos1, Eva Gonçalves Magalhães, Aderbal Farias Magalhães
1Laboratory of Natural Products, State University of Campinas, Campinas, SP, Brazil.
Abstract:
A systematic molecular fragmentation pathway (SMFP) was designed as an identifier to detect swartziarboreols (abieta-8,11,13-triene diterpenoid derivatives) in Swartzia extracts. The SMFP was rationalised through the interpretation of the EI/MS of swartziarboreols isolated from S. arborescens and S. langasdorffii and by analogy with the fragmentations observed for previously isolated compounds. Two pairs of swartziarboreol epimers were identified by GC-MS in an extract of S. langsdorffii using SMFP. Acetylation and methylation of the dichloromethane extract furnished, respectively, 3 and 4, which suggested the occurrence of a new natural orthodiphenolic swartziarboreol.
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