title: Secoiridoids and other chemotaxonomically relevant compounds in Pedicularis: phytochemical analysis and comparison of Pedicularis rostratocapitata Crantz and Pedicularis verticillata L. from Dolomites.
abstract: We compared the respective metabolite patterns of two Pedicularis species from Dolomites. Seven phenylethanoid glycosides, i.e., verbascoside (1), echinacoside (2), angoroside A (3), cistantubuloside B1 (4), wiedemannioside C (5), campneoside II (11) and cistantubuloside C1 (12), together with several iridoid glucosides as aucubin (6), euphroside (7), monomelittoside (8), mussaenosidic acid (9) and 8-epiloganic acid (13) were identified. Pedicularis verticillata showed also the presence of greatly unexpected secoiridoids, ligustroside (14) and excelside B (15), very rare compounds in Lamiales. Both PhGs and iridoids are considered of taxonomical relevance in the Asteridae and their occurrence in Pedicularis was discussed. In particular, the exclusive presence of several compounds such as 8-epiloganic acid (13), campneoside II (11), cistantubuloside C1 (12), ligustroside (14) and excelside B (15) in Pedicularis rostratocapitata, and angoroside A (3), cistantubuloside B1 (4) and wiedemannioside C (5) in P. verticillata could be considered specific markers for the two botanical entities.
authors.affiliation: a Dipartimento di Chimica , Sapienza Università di Roma , Roma , Italy.|b Dipartimento di Biologia Ambientale , Sapienza Università di Roma , Roma , Italy.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Venditti
authors.affiliation: b Dipartimento di Biologia Ambientale , Sapienza Università di Roma , Roma , Italy.
authors.forename: Claudio
authors.initials: C
authors.lastname: Frezza
authors.affiliation: a Dipartimento di Chimica , Sapienza Università di Roma , Roma , Italy.
authors.forename: Fabio
authors.initials: F
authors.lastname: Sciubba
authors.affiliation: b Dipartimento di Biologia Ambientale , Sapienza Università di Roma , Roma , Italy.
authors.forename: Sebastiano
authors.initials: S
authors.lastname: Foddai
authors.affiliation: b Dipartimento di Biologia Ambientale , Sapienza Università di Roma , Roma , Italy.
authors.forename: Mauro
authors.initials: M
authors.lastname: Serafini
authors.affiliation: b Dipartimento di Biologia Ambientale , Sapienza Università di Roma , Roma , Italy.
authors.forename: Marcello
authors.initials: M
authors.lastname: Nicoletti
authors.affiliation: a Dipartimento di Chimica , Sapienza Università di Roma , Roma , Italy.
authors.forename: Armandodoriano
authors.initials: A
authors.lastname: Bianco
mesh_terms: D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D039823:Iridoids / Q000737:chemistry / Q000302:isolation & purification*; D032262:Pedicularis / Q000737:chemistry*; D064209:Phytochemicals / Q000032:analysis*
chemical_list: D006027:Glycosides; D039823:Iridoids; D064209:Phytochemicals
keywords: Orobancaceae; Pedicularis rostratocapitata; Pedicularis verticillata; chemotaxonomy; iridoid glucosides; phenylethanoid glycosides; secoiridoids