NEW SPIRO-SESQUITERPENOIDIC CHROMANDIONE FROM GUM AMMONIACUM WITH ACETYLCHOLINESTERASE INHIBITORY ACTIVITY

Compounds from Gum Ammoniacum with Acetylcholinesterase Inhibitory Activity

The use of herbal medicinal preparations in dementia therapy has been studied based on experience from traditional medicine. A dichloromethane extract of gum ammoniacum, the gum-resin from Dorema ammoniacum D. Don had shown acetylcholinesterase (AChE) inhibitory activity in a previous study. The aim of this study was the isolation and characterization of the active compounds from this resin. Th...

Oligostilbenoids with acetylcholinesterase inhibitory activity from Dipterocarpus alatus.

Phytochemical investigation of the stem wood of Dipterocarpus alatus led to the isolation and characterization of four new oligostilbenoids, dipterocarpols A-D (1-4), together with two known resveratrol oligomers, hopeahainol (5) and hopeafuran (6). The structures of the new compounds were determined by comprehensive spectral analysis including 1D and 2D NMR, and high-resolution MS. The absolut...

acetylcholinesterase inhibitory activity of some seaweeds from persian gulf, iran

Acetylcholinesterase Inhibitory Activity of Standardized Cannabinoids-rich Fractions

Background: Since cannabis has been legally allowed for medicinal purposes in many countries, it has become more interesting issue, particularly in neurologic disorders such as Alzheimer’s disease (AD). Inhibition of acetylcholinesterase (AChE) is one of the mechanisms for the treatment of AD. Objectives: The present study aimed to establish a method for preparation of cannabinoids-rich extrac...

Green Synthesis and Urease Inhibitory Activity of Spiro-pyrimidinethiones/spiro-Pyrimidinones-barbituric Acid Derivatives

Sulfonic acid functionalized SBA-15 (SBA-Pr-SO3H) with pore size 6 nm as an efficient heterogeneous nanoporous solid acid catalyst exhibited good catalytic activity in the Biginelli-like reaction in the synthesis of spiroheterobicyclic rings with good yield and good recyclability. Spiro-pyrimidinethiones/spiro-pyrimidinones-barbituric acid derivatives were synthesized in a simple and efficient ...