Iridoids and phenylethanoid from Pedicularis kerneri Dalla Torre growing in Dolomites, Italy

  • Nat Prod Res. 2016;30(3):327-31. doi: 10.1080/14786419.2015.1060230.
Alessandro Venditti  1  2 ,  Claudio Frezza  2 ,  Mauro Serafini  2 ,  Armandodoriano Bianco  1
Affiliations
  • 1. a Dipartimento di Chimica , Sapienza Università di Roma , P.le A. Moro 5, 00185 Roma , Italy.
  • 2. b Dipartimento di Biologia Ambientale , Sapienza Università di Roma , P.le A. Moro 5, 00185 Roma , Italy.
PMID: 26207992 DOI: 10.1080/14786419.2015.1060230
Abstract

In this study, we report the first phytochemical analysis of polar fraction of Pedicularis kerneri Dalla Torre growing in Dolomites, Italy. Several iridoid glucosides were isolated, namely aucubin (1), monomelittoside (2), plantarenaloside (3), euphroside (4), mussaenosidic acid (5) and 8-epiloganic acid (6), showing a composition in accordance with previous study on this genus. The studied samples, collected from Dolomites, presented a chemotype already recognised in species from North America, characterised by euphroside (4) and aucubin (1) as main components, but the main character was the presence of monomelittoside (2) never reported in this genus. The identification of verbascoside (7), leucosceptoside A (9) and echinacoside (10) complete the systematic framing of this species since is ascertained the co-occurrence of phenylethanoid glycosides with Iridoids in Lamiales species.

Keywords
Orobanchaceae; Pedicularis kerneri Dalla Torre; hemiparasitic plant; iridoids; monomelittoside; phenylethanoid glycosides.
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