Rigenolides D –H, norsecoiridoid and secoiridoids from Gentiana rigescens Franch

AbstractFive new compounds, rigenolides D –H (1–5), were isolated from the aerial parts ofGentiana rigescens Franch. Their structures were assigned by detailed spectroscopic analyses and chemical conversions. Rigenolides D (1) and E (2) were elucidated to be a secoiridoid and a norsecoiridoid, respectively, possessing a dienone moiety in common. Rigenolides F –H (3–5) were assigned as acylated secoiridoid glucosides.
Source: Journal of Natural Medicines - Category: Drugs & Pharmacology Source Type: research