The occurrence of iridoid glycosides in a number of Cymbalaria spp. collected in Italy is shown and chemosystematic implications are discussed.The study of the patterns of iridoid glycosides supports the hypothesis that Cymbalaria is a true genus that is distinct from Linaria. All of the species were found to be members of the tribe Antirrhines, and the sequence of antirrhinoside/antirrhide compounds is common to both genera. However, polihydroxilated compounds, whose formation is probably the result of the ring opening of the 7–8 epoxy function of antirrhinoside or of further oxidation processes, are present only in Cymbalaria species, whereas to date they have not been found in Linaria species.
The occurrence of iridoid glycosides in Cymbalaria spp. in Italy / Serafini, Mauro; Foddai, Sebastiano; M., Ballero; Guiso, Marcella; Bianco, Armandodoriano. - In: NATURAL PRODUCT RESEARCH. - ISSN 1478-6419. - STAMPA. - 18:4(2004), pp. 325-327. [10.1080/14786410310001620565]
The occurrence of iridoid glycosides in Cymbalaria spp. in Italy
SERAFINI, Mauro;FODDAI, Sebastiano;GUISO, Marcella;BIANCO, Armandodoriano
2004
Abstract
The occurrence of iridoid glycosides in a number of Cymbalaria spp. collected in Italy is shown and chemosystematic implications are discussed.The study of the patterns of iridoid glycosides supports the hypothesis that Cymbalaria is a true genus that is distinct from Linaria. All of the species were found to be members of the tribe Antirrhines, and the sequence of antirrhinoside/antirrhide compounds is common to both genera. However, polihydroxilated compounds, whose formation is probably the result of the ring opening of the 7–8 epoxy function of antirrhinoside or of further oxidation processes, are present only in Cymbalaria species, whereas to date they have not been found in Linaria species.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
