Results 31 to 40 of about 7,050 (179)

3D,2D-QSAR study and docking of novel quinazolines as potential target drugs for osteosarcoma

open access: yesFrontiers in Pharmacology, 2023
Background: Quinazolines are an important class of benzopyrimidine heterocyclic compounds with a promising antitumor activity that can be used for the design and development of osteosarcoma target compounds.Objective: To predict the compound activity of ...
Zheng Lian   +4 more
doaj   +1 more source

Novel Polycarbo-Substituted Imidazo[1,2-c]quinazolines: Synthesis and Cytotoxicity Study

open access: yesMolecules, 2015
Amination of the 2-aryl-6-bromo-4-chloro-8-iodoquinazolines with 2-aminoethanol followed by acid-promoted cyclodehydration of the incipient 2-((6,8-dihalo-2-phenylquinazolin-4-yl)amino)ethanols afforded the corresponding novel 5-aryl-9-bromo-7-iodo-2,3 ...
Tebogo Ankie Khoza   +2 more
doaj   +1 more source

Medicinal Chemistry of Quinazolines as Anticancer Agents Targeting Tyrosine Kinases

open access: yesScientia Pharmaceutica, 2023
Cancer is a large group of diseases that can affect any organ or body tissue due to the abnormal cellular growth with the unknown reasons. Many of the existing chemotherapeutic agents are highly toxic with a low level of selectivity.
Mohamed F. Zayed
doaj   +1 more source

Conjugate Addition of Nucleophiles to the Vinyl Function of 2-Chloro-4-vinylpyrimidine Derivatives

open access: yesMolecules, 2010
Conjugate addition reaction of various nucleophiles across the vinyl group of 2-chloro-4-vinylpyrimidine, 2-chloro-4-(1-phenylvinyl)pyrimidine and 2-chloro-4-vinylquinazoline provides the corresponding 2-chloro-4-(2-substituted ethyl)pyrimidines and 2 ...
Lucjan Strekowski   +4 more
doaj   +1 more source

Advances in Metal-Catalyzed Cross-Coupling Reactions of Halogenated Quinazolinones and Their Quinazoline Derivatives

open access: yesMolecules, 2014
Halogenated quinazolinones and quinazolines are versatile synthetic intermediates for the metal-catalyzed carbon–carbon bond formation reactions such as the Kumada, Stille, Negishi, Sonogashira, Suzuki-Miyaura and Heck cross-coupling reactions or ...
Malose Jack Mphahlele   +1 more
doaj   +1 more source

Benzo[g]quinazolines as antifungal against candidiasis: Screening, molecular docking, and QSAR investigations

open access: yesSaudi Pharmaceutical Journal, 2023
Candida albicans, an opportunistic pathogen, is the most common type of fungus and represents a substantial source of human invasive disease (nosocomial infection).
Hatem A. Abuelizz   +5 more
doaj   +1 more source

Design, synthesis, and carbonic anhydrase inhibition activities of Schiff bases incorporating benzenesulfonamide scaffold: Molecular docking application

open access: yesSaudi Pharmaceutical Journal, 2023
In this study, The inhibitory actions of human carbonic anhydrase (CA, EC 4.2.1.1) (hCA) isoforms I, II, IX, and XII are being examined using recently synthesized substituted hydroxyl Schiff derivatives based on the quinazoline scaffold 4–22 ...
Adel S. El-Azab   +7 more
doaj   +1 more source

An Integrated DNA Nanoprobe for Intranuclear Imaging and in Situ Profiling of OGG1 Activity

open access: yesAdvanced Science, EarlyView.
The TP‐SA nanoprobe, integrating an AS1411 aptamer for nuclear delivery and a FRET array for signal amplification, enables real‐time tracking of nuclear OGG1 activity. It reveals cell‐line‐specific basal OGG1 levels and shows clinical promise using pneumonia patients’ lavage fluid.
Mingzhu Zhao   +9 more
wiley   +1 more source

SYNTHESIS AND BIOLOGICAL ACTIVITY OF SOME NEW 1,2,4-TRIAZINO[6,1-B]QUINAZOLINE DERIVATIVES. [PDF]

open access: yesAl-Azhar Journal of Pharmaceutical Sciences, 2015
In this study, novel 3-substituted 1,2,4-triazino[6,1-b]quinazolines 4a-e, 8-substituted-1H-[1,2,4]triazino[6,1-b]quinazoline-2,4,10(3H)-triones 8a&b  and 2-substituted 1,2,4-triazino[6,1-b]quinazolines 9a-d, 10 & 11 were synthesized from 3-amino-
Mervat El-Enany
doaj   +1 more source

Synthesis, Antibacterial, and Antioxidant Evaluation of Novel Series of Condensed Thiazoloquinazoline with Pyrido, Pyrano, and Benzol Moieties as Five- and Six-Membered Heterocycle Derivatives

open access: yesMolecules, 2021
A novel synthesis of thiazolo[2,3-b]quinazolines 4(a–e), pyrido[2′,3′:4,5]thiazolo[2,3-b]quinazolines {5(a–e), 6(a–e), and 7(a–e)}, pyrano[2′,3′:4,5]thiazolo[2,3-b]quinazolines 8(a–e), and benzo[4,5]thiazolo[2,3-b]quinazoloine9(a–e) derivatives starting ...
Ebraheem Abdu Musad Saleh   +4 more
doaj   +1 more source

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