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Article Publish Status: FREE
Abstract Title:

New cholinesterase inhibitory constituents from Lonicera quinquelocularis.

Abstract Source:

PLoS One. 2014 ;9(4):e94952. Epub 2014 Apr 14. PMID: 24733024

Abstract Author(s):

Dilfaraz Khan, Hidayat Ullah Khan, Farmanullah Khan, Shafiullah Khan, Syed Badshah, Abdul Samad Khan, Abdul Samad, Farman Ali, Ihsanullah Khan, Nawshad Muhammad

Article Affiliation:

Dilfaraz Khan

Abstract:

A phytochemical investigation on the ethyl acetate soluble fraction of Lonicera quinquelocularis (whole plant) led to the first time isolation of one new phthalate; bis(7-acetoxy-2-ethyl-5-methylheptyl) phthalate (3) and two new benzoates; neopentyl-4-ethoxy-3, 5-bis (3-methyl-2-butenyl benzoate (4) and neopentyl-4-hydroxy-3, 5-bis (3-methyl-2-butenyl benzoate (5) along with two known compounds bis (2-ethylhexyl phthalate (1) and dioctyl phthalate (2). Their structures were established on the basis of spectroscopic analysis and by comparison with available data in the literature. All the compounds (1-5) were tested for their acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) inhibitory activities in dose dependent manner. The IC50 (50% inhibitory effect) values of compounds 3 and 5 against AChE were 1.65 and 3.43µM while the values obtained against BChE were 5.98 and 9.84 µM respectively. Compounds 2 and 4 showed weak inhibition profile.

Study Type : In Vitro Study

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