Chemical Constituents from the Roots of Patrinia Rupestris

Abstract

Phytochemical investigation of the roots of Patrinia rupestris afforded a new triterpenoid patrirupin A (1) and a new iridoid patrirupin B (2), as well as three known triterpenoids: 3‐oxo‐olean‐12‐en‐28‐oic acid (3), ursolic acid (4), α‐amyrin (5), three known iridoids: isovaltratum (6), 11‐ethoxyviburtinal (7), homobaldrinal (8), five known steroids: ergosterol (9), ergost‐6,22‐diene‐3β,5α,8α‐triol (10), 6‐hydroxenone (11), β‐sitosterol (12), daucosterol (13), and two known flavones: 1‐hydroxy‐5‐methoxy xanthen‐9‐one (14), 3′,4′,5,7‐tetrahydroxyflavanone (15). The new compounds were characterized by means of spectroscopic methods including UV, IR, 1D, 2D NMR and HRESIMS, and the known ones were established on the basis of comparing their NMR data with those of the corresponding compounds in the literature.

A new iridoid compound fromPatrinia rupestris(Pall.) Juss.

“…Its molecular formula of ( (Yang, Yuan, & Jia, 2007), which was confirmed by HMBC correlations of 1 ( Figure 1). Detailed NMR analysis of 1 indicated the presence of two ethoxy groups.…”

Iridoids from the roots ofValeriana jatamansi

“…By analyzing the NMR spectroscopic data of compounds 3-6, and comparing their physical and spectroscopic data with those reported in the literature, the known iridoids were identified as rupesin B (3) [16], homobaldrinal (4) [17], baldrinal (5) [18], and 11-methoxyviburtinal (6) [18].…”

Characterization of Chemical Constituents in Guan Xin II Decoction by Liquid Chromatography Coupled with Electrospray Ionization-Mass Spectrometry

“…Compared with peak 55 and a previous study [10], the m/z = 151 indicated an Aring fragment of flavanones combined with a hydroxy group. So peak 36 was finally proposed as 3′,4′,5,7-tetrahydroxyflavanone [29]. Peak 54 and peak 56 (Fig.…”