The analysis of the polar fraction of Melittis melissophyllum L. subsp. melissophyllum led to the identification of several iridoid glycosides: monomelittoside (1), melittoside (2), harpagide (3), acetyl-harpagide (4) and ajugoside (5). Compounds 3 and 4 are considered marker compounds for the genus and, as well as compounds 1, 2 and 5, were already evidenced in a previous study on the nominal species. It was noteworthy of the presence of allobetonicoside (6) which was never reported for this genus. The isolation of 6 is very relevant because of its allose residue on the structure. Allose has been often found in the species of the subfamily Lamioideae even if it mostly regarded flavonoids considered of chemotaxonomical relevance for some correlated genera of Lamiaceae. Same as allosyl-glycosidic flavonoids, the presence of allosyl-glycosidic iridoids may also be an additional chemosystematic evidence of botanical relationships among Lamiaceae species and genera.

Reassessment of Melittis melissophyllum L. subsp. melissophyllum iridoidic fraction / Venditti, Alessandro; Frezza, Claudio; Guarcini, Laura; Maggi, Filippo; Bianco, Armandodoriano; Serafini, Mauro. - In: NATURAL PRODUCT RESEARCH. - ISSN 1478-6419. - STAMPA. - 30:(2016), pp. 218-222. [10.1080/14786419.2015.1040792]

Reassessment of Melittis melissophyllum L. subsp. melissophyllum iridoidic fraction

VENDITTI, ALESSANDRO
;
FREZZA, CLAUDIO;GUARCINI, LAURA;BIANCO, Armandodoriano;SERAFINI, Mauro
2016

Abstract

The analysis of the polar fraction of Melittis melissophyllum L. subsp. melissophyllum led to the identification of several iridoid glycosides: monomelittoside (1), melittoside (2), harpagide (3), acetyl-harpagide (4) and ajugoside (5). Compounds 3 and 4 are considered marker compounds for the genus and, as well as compounds 1, 2 and 5, were already evidenced in a previous study on the nominal species. It was noteworthy of the presence of allobetonicoside (6) which was never reported for this genus. The isolation of 6 is very relevant because of its allose residue on the structure. Allose has been often found in the species of the subfamily Lamioideae even if it mostly regarded flavonoids considered of chemotaxonomical relevance for some correlated genera of Lamiaceae. Same as allosyl-glycosidic flavonoids, the presence of allosyl-glycosidic iridoids may also be an additional chemosystematic evidence of botanical relationships among Lamiaceae species and genera.
2016
Melittis melissophyllum L. subsp; melissophyllum; lamiaceae; iridoids; allobetonicoside; chemotaxonomy
01 Pubblicazione su rivista::01a Articolo in rivista
Reassessment of Melittis melissophyllum L. subsp. melissophyllum iridoidic fraction / Venditti, Alessandro; Frezza, Claudio; Guarcini, Laura; Maggi, Filippo; Bianco, Armandodoriano; Serafini, Mauro. - In: NATURAL PRODUCT RESEARCH. - ISSN 1478-6419. - STAMPA. - 30:(2016), pp. 218-222. [10.1080/14786419.2015.1040792]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/788299
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