Results 21 to 30 of about 13,731 (218)

Crystal structure of 4-methylsulfanyl-2-phenylquinazoline

open access: yesActa Crystallographica Section E, 2014
In the title compound, C15H12N2S, the methylthioquinazoline group is planar with the methyl C displaced by only 0.116 (3) Å from the plane of the quinazoline moiety. The dihedral angle between the phenyl ring and the quinazoline ring system is 13.95 (5)°.
Mohammed B. Alshammari   +4 more
doaj   +1 more source

Structure-Activity Relationship and Docking Study of Non-Quinazoline EGFR/VEGFR Dual Inhibitors. A Review [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering
The dual inhibitors of Epidermal Growth Factor Receptor (EGFR) and Vascular Endothelial Growth Factor Receptor 2 (VEGFR-2) have been developed as a promising strategy for cancer therapy.
Fatemeh Yousefbeyk, Saeed Ghasemi
doaj   +1 more source

Quinazolinone-based hybrids with diverse biological activities: A mini-review

open access: yesJournal of Research in Medical Sciences, 2022
Quinazolinone and quinazoline have been shown different pharmacological activities, namely anticancer, anti-inflammatory, anti-hyperlipidemia, analgesic, antihypertensive, and antibacterial.
Rezvan Rezaeinasab   +2 more
doaj   +1 more source

Isothiazologuanosine (tzG) as Environmentally Sensitive Fluorescent Reporter in RNA

open access: yesAngewandte Chemie, EarlyView.
The emissive isothiazologuanosine analog tzG is synthesized for the first time as RNA phosphoramidite building block for solid‐phase synthesis. Due to its isomorphic and isofunctional characteristics, tzG forms Watson–Crick base pairs and can be used as fluorescent probe to monitor (deoxy)ribozyme activity.
Julia Dietzsch   +2 more
wiley   +2 more sources

Hirshfeld Surface Analysis and Energy Framework for Crystals of Quinazoline Methylidene Bridged Compounds

open access: yesProceedings, 2020
The crystal structures of 4-(3,4-dimethoxyphenylethylamino)-methylidene-2,3,4,10-tetrahydro-1H-pyrido[2,1-b]-quinazolin-10-one (1) and 4-(3,4-methylene-dioxyphenylethylamino)-methylidene-2,3,4,10-tetrahydro-1H-pyrido[2,1-b]-quina-zolin-10-one ...
Akmaljon Tojiboev   +7 more
doaj   +1 more source

Quinazoline Based HDAC Dual Inhibitors as Potential Anti-Cancer Agents

open access: yesMolecules, 2022
Cancer is the most devastating disease and second leading cause of death around the world. Despite scientific advancements in the diagnosis and treatment of cancer which can include targeted therapy, chemotherapy, endocrine therapy, immunotherapy ...
Jyothi Dhuguru, Ola A. Ghoneim
doaj   +1 more source

Study of the Anti-klebsiella Activity of Quinazoline Compounds Containing a Piperazine Ring

open access: yesАнтибиотики и Химиотерапия
The aim of this study was to investigate the antimicrobial activity of piperazine ring-containing quinazoline compounds against Klebsiella pneumoniae.
A. A. Tsibizova   +4 more
doaj   +1 more source

Synthesis of some new substituted iodoquinazoline derivatives and their antimicrobial screening

open access: yesJournal of Saudi Chemical Society, 2011
A new series of 6-iodo-2-thienylquinazolin-4(3H)-one and its fused heterocyclic analogs were prepared and screened for their antimicrobial activity. Compounds 4, 8, 14 and 24 showed remarkable broad spectrum antimicrobial activity. The fused heterocycles,
Ahmed M. Alafeefy   +4 more
doaj   +1 more source

Hybrid molecules derived from quinazoline and 1,2,3-triazoles: synthesis and antibacterial activity evaluation

open access: yesResults in Chemistry
In this study, the synthesis of novel hybrid molecules derived from quinazoline and 1,2,3-triazoles was reported via copper-catalyzed click reaction. The reaction of quinazoline-4-one-2-thione and quinazoline-2,4-dione with 3-bromoprop-1-yne produced ...
Mahnaz Hashemipour   +3 more
doaj   +1 more source

8-Hydroxy-5-nitroquinoline as a C-nucleophilic reagent in the reaction of C, C-coupling with quinazoline

open access: yesChimica Techno Acta, 2020
The first example of the reaction of 5-nitro-8-hydroxyquinoline as a C-nucleophile with quinazoline is described. As a result of the reaction of C, C-coupling, a stable σ-adduct containing the drug nitroxalin on a heterocyclic carrier was obtained.
Yuri A. Azev   +4 more
doaj   +1 more source

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