Taraxeryl cis- and trans-p-hydroxycinnamates from Bruguiera gymnorrhiza, and their chemical structure elucidation...

We report herein the occurrence of two known compounds, taraxeryl cis (1)- & trans (2)-p hydroxycinnamates however, for the first time from the leaves of Bruguiera gymnorrhiza. Based on the recent reports (until 2025), firstly the trends in the recent works, secondly the chemical Structure Elucidation Techniques (cSET) through Comparative Spectral Studies (CSS), and thirdly the bio-prospect of both the isomers have been presented. Further, to fill-in the limited discussion on IR of 1 and 2 in earlier reports, this paper elaborated the FTIR spectra with the intricacies of interfering group, alternate option bands etc. Further, in-between the ¹H and ¹³C NMR, some valuable spectral differences have been re-visited and, the broader usability of ¹H NMR over ¹³C NMR has been tipped-off. With hands on examples of 1 and 2, our approach to cSET-CSS might equally attract the teachers, students, and the early career researchers especially within the teaching-learning landscape.