Results 31 to 40 of about 24,434,811 (177)

Quinazoline Derivatives as Green Corrosion Inhibitors for Carbon Steel in Hydrochloric Acid Solutions

International Journal of Electrochemical Science, 2013
The inhibiting effect of some quinazoline derivatives on the corrosion of carbon steel in 2 M HCl was studied by weight loss, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM) and energy ...
A.S. Fouda, A.M. El-desoky, Hala M. Hassan   +2 more
doaj   +1 more source

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

Results 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, Ali Keivanloo, Mohammad Bakherad, Hossein Aghamollaei   +3 more
doaj   +1 more source

Synthesis of New 1,2,3-Triazol-4-yl-quinazoline Nucleoside and Acyclonucleoside Analogues

Molecules, 2014
In this study, we describe the synthesis of 1,4-disustituted-1,2,3-triazolo-quinazoline ribonucleosides or acyclonucleosides by means of 1,3-dipolar cycloaddition between various O or N-alkylated propargyl-quinazoline and 1'-azido-2',3',5'-tri-O ...
Abdelaaziz Ouahrouch, Moha Taourirte, Joachim W. Engels, Soumaya Benjelloun, Hassan B. Lazrek   +4 more
doaj   +1 more source

Synthesis, characterization and antibacterial activities of Zn(II) and Cd(II) complexes of a quinazoline-4(3H)-one Schiff base [PDF]

Journal of the Serbian Chemical Society, 2014
Zn(II) and Cd(II) complexes of a Schiff base derived from quinazoline-4(3H) one and 2-formylphenoxy acetic acid were prepared and characterized by elemental and different spectroscopic (IR, UV-Visible and NMR) analyses.
Brahman Dhiraj, Sinha Biswajit
doaj   +1 more source

Absolute configuration of (1S,2S)-3-methyl-2-phenyl-2,3-dihydrothiazolo[2,3-b]quinazolin-5-one

Acta Crystallographica Section E, 2012
The absolute structure of the molecule in the crystal of the title compound, C17H14N2OS, was determined by the refinement of the Flack parameter to 0.0 (2) based on 1011 Friedel pairs.
Mostafa. M. Ghorab, Mansour. S. Al-Said, Maged. S. Abdel-Kader, Madhukar Hemamalini, Hoong-Kun Fun   +4 more
doaj   +1 more source

Silver-Catalyzed Cascade Cyclization of Amino-NH-1,2,3-Triazoles with 2-Alkynylbenzaldehydes: An Access to Pentacyclic Fused Triazoles

Molecules, 2022
An operationally simple Ag(I)-catalyzed approach for the synthesis of isoquinoline and quinazoline fused 1,2,3-triazoles was developed by a condensation and amination cyclization cascade of amino-NH-1,2,3-triazoles with 2-alkynylbenzaldehydes involving ...
Shuitao Zhang, Jianxin Li, Tiebo Xiao, Baomin Yang, Yubo Jiang   +4 more
doaj   +1 more source

Loss of E3 Ubiquitin Ligase RINES via CpG Methylation Relieves Suppression of STAT3 and MYC, Facilitating Multiple Tumorigeneses

Advanced Science, EarlyView.
Dysregulated protein modifications drive tumorigenesis. RINES, an E3 ubiquitin ligase, represses tumor cell proliferation and metastasis by facilitating RING domain‐dependent, ubiquitin–proteasome‐mediated degradation of STAT3 and MYC, which consequently restrains cancer stemness and oncogenic progression.
Lili Li, Ka Man Ng, Xingsheng Shu, Xiaoxue Chai, Kai Yau Wong, Gopesh Srivastava, Anthony T.C. Chan, Wai Yee Chan, Qian Tao   +8 more
wiley   +1 more source

TP53 Loss Elevates NF‐κB‐IFN‐β‐MHC‐Ia Signaling to Promote NK Cell Resistance in Osteosarcoma

Advanced Science, EarlyView.
TP53 loss in a transforming or osteosarcoma cell promotes cytosolic DNA accumulation, activating NF‐κB‐dependent IFN‐β production. Autocrine IFN‐β signaling increases cell‐surface HLA‐Ia expression, strengthens inhibitory KIR signaling in natural killer cells, and thereby enables the affected cell to evade NK cell‐mediated cytotoxicity.
Guihui Qin, Cheung Kwan Yeung, Ye Yi, Dejin Zheng, Miaoman Ye, Chi‐Chong Chio, Jinjie Wu, Siyi Fu, Chu‐Xia Deng, Ren‐He Xu   +9 more
wiley   +1 more source

Crystal structure of 5-(5,6-dihydrobenzo[4,5]imidazo[1,2-c]quinazolin-6-yl)-2-methoxyphenol

Acta Crystallographica Section E: Crystallographic Communications, 2015
In the molecule of the title compound, C21H17N3O2, the 5,6-dihydrobenzimidazo[1,2-c]quinazoline moiety is disordered over two orientations about a pseudo-mirror plane, with a refined occupancy ratio of 0.863 (2):0.137 (2).
Farook Adam, Md. Azharul Arafath, A. Haque Rosenani, Mohd. R. Razali   +3 more
doaj   +1 more source

The MoSR‐MoDde1 Regulatory Axis: A Novel Determinant of DMI Sensitivity and a Target for Sustainable Rice Blast Control

Advanced Science, EarlyView.
The transcription factor MoSR governs DMI fungicide sensitivity in Magnaporthe oryzae through dual regulation of ergosterol biosynthesis and the detoxification enzyme MoDde1. Targeting MoDde1 via a small‐molecule inhibitor or host‐induced gene silencing enhances DMI efficacy against rice blast, offering a sustainable disease management strategy ...
Fan‐Zhu Meng, Wen‐Kai Wei, Meng‐Yao Wu, Min‐Zheng Cai, Yu‐Fu Wang, Li Zhao, Shuai Meng, Liang‐Fen Yin, Guido Schnabel, Wei‐Xiao Yin, Chao‐Xi Luo   +10 more
wiley   +1 more source