In a chemical investigation of the water soluble compounds in Paederota bonarota five known iridoid glucosides were isolated together with a compound with an 8,9-double bond, namely bonarotoside (10-O-benzoyl arborescosidic acid). The known iridoid glucosides were aucubin, catalpol and the 6-O-esters of catalpol: verproside, catalposide, amphicoside and veronicoside, compounds that are characte...

Abstract Iridoids are a class of secondary metabolites found in wide variety plants. typically plants as glycosides, most often to glucose. The genus Stachys L. is one the largest genera Lamiaceae family, containing iridoids. Aim aim this study was isolation and identification iridoids from aerial parts byzantina K. Koch germanica Methods For iridoids, different chromatographic methods (NP-TLC,...

In the course of screening for antioxidant compounds by measuring the radical scavenging effect on DPPH (1,1-diphenyl2-picrylhydrazyl), a total extract of the twigs of Vitex rotundifolia (Verbenaceae) was found to show potent antioxidant activity. Subsequent activity-guided fractionation of the methanolic extract led to the isolation of three iridoid compounds, 10-O-vanilloylaucubin (1), 10-O-p...

The n-hexane (HE), dichloromethane (DC), methanol (ME), ethanol 70% (ET), and methanol with Soxlhet apparatus (MS) extracts of Stachys lavandulifolia aerial parts were screened for their potential tyrosinase, acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) inhibitory activity. ET and MS inhibited tyrosinase with IC50 values of 33.4 and 42.8 μg/mL, respectively. The phytochemical in...