Synthesis and discovery of highly functionalized mono- and bis-spiro-pyrrolidines as potent cholinesterase enzyme inhibitors
摘要:
Novel mono and bis spiropyrrolidine derivatives were synthesized via an efficient ionic liquid mediated, 1,3-dipolar cycloaddition methodology and evaluated in vitro for their AChE and BChE inhibitory activities in search for potent cholinesterase enzyme inhibitors. Most of the synthesized compounds displayed remarkable AChE inhibitory activities with IC50 values ranging from 1.68 to 21.85 mu M, wherein compounds 8d and 8j were found to be most active inhibitors against AChE and BChE with IC50 values of 1.68 and 2.75 mu M, respectively. Molecular modeling simulation on Torpedo californica AChE and human BChE receptors, showed good correlation between IC50 values and binding interaction template of the most active inhibitors docked into the active site of their relevant enzymes. (c) 2014 Elsevier Ltd. All rights reserved.
Synthesis, human topoisomerase IIα inhibitory properties and molecular modeling studies of anti-proliferative curcumin mimics
作者:Nehmedo G. Fawzy、Siva S. Panda、Walid Fayad、ElSayed M. Shalaby、Aladdin M. Srour、Adel S. Girgis
DOI:10.1039/c9ra05661k
日期:——
Piperidinecarboxamides (curcumin mimics) show promising anti-proliferative properties against HCT116 (colon), MCF7 (breast) and A431 (squamous skin) carcinoma cell lines with potency higher than that of 5-fluorouracil.
Dispiropyrrolidinyl-piperidone embedded indeno[1,2-b]quinoxaline heterocyclic hybrids: Synthesis, cholinesterase inhibitory activity and their molecular docking simulation
作者:Natarajan Arumugam、Abdulrahman I. Almansour、Raju Suresh Kumar、D. Kotresha、R. Saiswaroop、S. Venketesh
DOI:10.1016/j.bmc.2019.03.058
日期:2019.6
indono[1,2-b]quinoxaline heterocyclic hybrids 7a-j were synthesized employing multicomponent 1,3-dipolarcycloaddition strategy in [bmim]Br. The azomethine ylide employed is first of its kind and generated in situ from indenoquinoxalinone and l-tryptophan, a combination that has not been employed previously for the in situ generation of azomethine ylides. The synthesized heterocyclic hybrids 7a-j were evaluated
Tumour-specific cytotoxicity and structure–activity relationships of novel 1-[3-(2-methoxyethylthio)propionyl]-3,5-bis(benzylidene)-4-piperidones
作者:Mohammad Hossain、Umashankar Das、Naoki Umemura、Hiroshi Sakagami、Jan Balzarini、Erik De Clercq、Masami Kawase、Jonathan R. Dimmock
DOI:10.1016/j.bmc.2016.03.056
日期:2016.5
piperidones 3-7 were designed and synthesized as novel cytotoxic agents. These compounds displayed potent cytotoxic properties towards human Molt4/C8, CEM, HSC-2, HSC-3 and HSC-4 neoplasms and also to murine L1210 cells. The majority of the compounds have sub-micromolar or very low micromolar IC50 and CC50 values and are significantly more potent than the reference alkylating drug melphalan. Evaluation
Domino Multicomponent Approach for the Synthesis of Functionalized Spiro-Indeno[1,2-b]quinoxaline Heterocyclic Hybrids and Their Antimicrobial Activity, Synergistic Effect and Molecular Docking Simulation
作者:Abdulrahman I. Almansour、Natarajan Arumugam、Raju Suresh Kumar、Dhaifallah M. Al-thamili、Govindasami Periyasami、Karuppiah Ponmurugan、Naif Abdullah Al-Dhabi、Karthikeyan Perumal、Dhanaraj Premnath
DOI:10.3390/molecules24101962
日期:——
dispiropyrrolidine tethered N-styrylpiperidone hybrid heterocycles in moderate to good yield in a single step. These compounds were evaluated for their antimicrobialactivity against bacterial and fungal pathogens, therein compounds 8f, 8h, and 8l displayed significant activity against tested microbial pathogens. The synergistic effect revealed that the combination of compound 8h with streptomycin and vancomycin
Functionalized spirooxindole-indolizine hybrids: Stereoselective green synthesis and evaluation of anti-inflammatory effect involving TNF-α and nitrite inhibition
Stereoselectivesynthesis of a small library of novel spiroheterocyclic hybrids including indolizine, oxindole, and substituted piperidine units has been accomplished in [bmim]Br using a [3 + 2] cycloaddition strategy in good yield and were tested for their anti-inflammatory activities. The effects of compounds (4a-o) against inflammation were studied using carrageenan-induced hind paw oedema, croton