Monoterpenoid glucoindole alkaloids and iridoids from Pterocephalus pinardii.
A new secondary metabolite, pterocephaline, along with the known cantleyoside, 7alpha-morroniside, 3beta,5alpha-tetrahydrodesoxycordifoline lactam, 5S-5-carboxyvincoside, sweroside, and loganin have been isolated from the aerial parts of P. pinardii (Dipsacaceae). Moreover, cantleyoside-methyl-hemiacetal and cantleyoside-dimethyl-acetal were obtained as seco-iridoid artifacts. The structures were elucidated by extensive spectroscopic methods including 1D-((1)H, (13)C and TOCSY) and 2D-NMR (DQF-COSY, HSQC and HMBC). Monoterpenoid glucoindole alkaloids were encountered for the first time in Dipsacaceae family.
Gülcemal
Derya
D
Department of Chemistry, Faculty of Science, Ege University, Bornova, 35100 Izmir, Turkey.
Masullo
Milena
M
Alankuş-Calişkan
Ozgen
O
Karayildirim
Tamer
T
Senol
Serdar G
SG
Piacente
Sonia
S
Bedir
Erdal
E
D000470:Alkaloids / Q000737:chemistry* / Q000302:isolation & purification; D049917:Dipsacaceae / Q000737:chemistry*; D039823:Iridoids / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy / Q000592:standards; D008968:Molecular Conformation; D039821:Monoterpenes / Q000737:chemistry* / Q000302:isolation & purification; D035261:Plant Components, Aerial / Q000737:chemistry; D012015:Reference Standards; D013237:Stereoisomerism
D000470:Alkaloids; D039823:Iridoids; D039821:Monoterpenes