Iridoids from Lippia graveolens.
An investigation of the leaves of Lippia graveolens from Guatemala provided 10 iridoid and secoiridoid glucosides as well as their ester derivatives. Minor constituents were loganin, secologanin, secoxyloganin, dimethylsecologanoside, loganic acid, 8-epi-loganic acid and caryoptoside. Major constituents were the novel iridoids caryoptosidic acid and lippioside I and II consisting of caryoptosidic acid esterified at the C-6 position of glucose with p-coumaroyl or caffeoyl residues, respectively. Their structures were mainly elucidated by NMR spectroscopy.
Rastrelli
L
L
Dipartimento di Scienze Farmaceutiche, Università di Salerno, Piazza V. Emanuele 9, 84084 Penta, Salerno, Italy
Caceres
A
A
Morales
C
C
De Simone
F
F
Aquino
R
R