The ethanolic extract derived from the whole plant of Pardoglossum cheirifolium was submitted to phytochemical investigation. A new pyrrolizidine alkaloid, 3′-O-acetylleptanthine N-oxide (1), was isolated together with three known compounds of the same class, i.e., heliosupine N-oxide (2), heliosupine (3), and heliovicine (4). The structure of the new compound was elucidated after extensive mono- and bidimensional NMR experiments and confirmed by a MS experiment.
Pyrrolizidine alkaloids from Pardoglossum cheirifolium / Benamar, Houari; Tomassini, Lamberto; Frezza, Claudio; Gentili, Alessandra; Tomai, Pierpaolo; Marouf, Abderrazak; Bennaceur, Malika; Serafini, Mauro. - In: CHEMISTRY OF NATURAL COMPOUNDS. - ISSN 0009-3130. - 57:3(2021), pp. 497-499. [10.1007/s10600-021-03395-x]
Pyrrolizidine alkaloids from Pardoglossum cheirifolium
Tomassini, Lamberto;Frezza, Claudio;Gentili, Alessandra;Tomai, Pierpaolo;Serafini, Mauro
2021
Abstract
The ethanolic extract derived from the whole plant of Pardoglossum cheirifolium was submitted to phytochemical investigation. A new pyrrolizidine alkaloid, 3′-O-acetylleptanthine N-oxide (1), was isolated together with three known compounds of the same class, i.e., heliosupine N-oxide (2), heliosupine (3), and heliovicine (4). The structure of the new compound was elucidated after extensive mono- and bidimensional NMR experiments and confirmed by a MS experiment.File | Dimensione | Formato | |
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