eprintid: 4312 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/00/43/12 datestamp: 2023-11-09 16:15:59 lastmod: 2023-11-09 16:15:59 status_changed: 2023-11-09 15:58:09 type: article metadata_visibility: show creators_name: Khan, D. creators_name: Khan, H.U. creators_name: Khan, F. creators_name: Khan, S. creators_name: Badshah, S. creators_name: Khan, A.S. creators_name: Samad, A. creators_name: Ali, F. creators_name: Khan, I. creators_name: Muhammad, N. title: New cholinesterase inhibitory constituents from Lonicera quinquelocularis ispublished: pub keywords: acetylcholinesterase; bis(7 acetoxy 2 ethyl 5 methylheptyl)phthalate; cholinesterase; cholinesterase inhibitor; Lonicera quinquelocularis extract; neopentyl 4 ethoxy 3, 5 bis 3 methyl 2 butenyl benzoate; neopentyl 4 hydroxy 3, 5 bis 3 methyl 2 butenyl benzoate; phthalic acid bis(2 ethylhexyl) ester; phthalic acid dioctyl ester; plant extract; unclassified drug; cholinesterase inhibitor, article; cholinesterase inhibition; controlled study; dose response; drug isolation; drug structure; IC 50; Lonicera; Lonicera quinquelocularis; phytochemistry; animal; carbon nuclear magnetic resonance; chemistry; enzyme assay; horse; IC50; metabolism; proton nuclear magnetic resonance, Animals; Butyrylcholinesterase; Carbon-13 Magnetic Resonance Spectroscopy; Cholinesterase Inhibitors; Cholinesterases; Enzyme Assays; Horses; Inhibitory Concentration 50; Lonicera; Proton Magnetic Resonance Spectroscopy note: cited By 10 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 3.43 μM while the values obtained against BChE were 5.98 and 9.84 μM respectively. Compounds 2 and 4 showed weak inhibition profile. © 2014 Khan et al. date: 2014 publisher: Public Library of Science official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84899660742&doi=10.1371%2fjournal.pone.0094952&partnerID=40&md5=ed42fe994686eb2503918f56166c5c5d id_number: 10.1371/journal.pone.0094952 full_text_status: none publication: PLoS ONE volume: 9 number: 4 refereed: TRUE issn: 19326203 citation: Khan, D. and Khan, H.U. and Khan, F. and Khan, S. and Badshah, S. and Khan, A.S. and Samad, A. and Ali, F. and Khan, I. and Muhammad, N. (2014) New cholinesterase inhibitory constituents from Lonicera quinquelocularis. PLoS ONE, 9 (4). ISSN 19326203