A new depside and a new secoiridoid from the aerial parts of Gentiana olivieri from flora of Turkey.

Hasan Kırmızıbekmez, Deniz Tatar, Murat Erdoğan, Norbert Kúsz, Judit Hohmann

Natural product research 2022 May

filter terms:

A new depside, olivieridepside (1), and a new secoiridoid, olivierigenin (2) were isolated from the aerial parts of Gentiana olivieri Griseb. along with four known compounds, gentiopicroside (3), olivierosides A (4) and B (5) and isoorientin (6). The structures of the isolates were determined by extensive 1 D and 2 D NMR spectroscopy and HR-MS analysis. This is the first report on the occurrence of a depside structure in the genus Gentiana. Moreover, a rare type of non-glycosidic secoiridoid (2) lacking an oxygenated group at C-1 is also being reported for the first time from this genus. The chemotaxonomic importance of the isolates was discussed in detail.

Citation

Hasan Kırmızıbekmez, Deniz Tatar, Murat Erdoğan, Norbert Kúsz, Judit Hohmann. A new depside and a new secoiridoid from the aerial parts of Gentiana olivieri from flora of Turkey. Natural product research. 2022 May;36(9):2208-2214