Mi. Mitova et al., IRIDOID GLUCOSIDES FROM 4 BALKAN ENDEMICS OF THE GALIUM-INCURVUM GROUP (RUBIACEAE), Zeitschrift fur Naturforschung. C, A journal of biosciences, 51(5-6), 1996, pp. 286-290
The Balkan endemics G. mirum, Galium macedonicum, G. rhodopeum and G.
aegeum, from the G. incurvum group, were screened for iridoid glucosid
es. Eleven known iridoid glucosides were isolated, identified and anal
ysed for the first time in the investigated plants. The main component
s appeared to be asperuloside and/or the non-acetylated iridoid acids
- deacetylasperulosidic acid, scandoside, monotropein. Phylogenetic re
lationships are discussed.