Synthesis and evaluation of larvicidal efficacy against C. pipiens of some new heterocyclic compounds emanated from 2-cyano-N'-(2-(2,4-dichlorophenoxy)acetyl)acetohydrazide.

Several infectious diseases are transmitted and spread by mosquitoes, and millions of people die annually from them. The mosquito, Culex pipiens is a responsible for the emergence of various Virus in Egypt. So, we devote our work to evaluate the larvicidal efficacy against C.

New pyrazolo[3,4-]pyrimidine derivatives as EGFR-TK inhibitors: design, green synthesis, potential anti-proliferative activity and P-glycoprotein inhibition.

In this study, four series of new pyrazolo[3,4-]pyrimidine derivatives were designed and synthesized with both green and conventional methods. All the synthesized candidates were chemically confirmed using spectroscopic methods, and the DFT of the reaction mechanism was illustrated. The anti-proliferative activity of the synthesized compounds was evaluated against NCI 60 cancer cell lines.

Optimal sampling and statistical inferences for Kumaraswamy distribution under progressive Type-II censoring schemes.

In this paper, we study non-Bayesian and Bayesian estimation of parameters for the Kumaraswamy distribution based on progressive Type-II censoring. First, the maximum likelihood estimates and maximum product spacings are derived. In addition, we derive the asymptotic distribution of the parameters and the asymptotic confidence intervals.

Radiation Synthesis of Carbon/Aluminum/Silica Aerogel Nanoporous Structure Derived from Polyacrylamide Hydrogel for High Temperature and Oil Removal Applications.

Aerogel is a high-performance thermal resistance material desired for high-temperature applications like dye-sensitized solar cells, batteries, and fuel cells. To increase the energy efficiency of batteries, an aerogel is required to reduce the energy loss arising from the exothermal reaction. This paper synthesized a different composition of inorganic-organic hybrid material by growing the silica aerogel inside a polyacrylamide (PAAm) hydrogel.

New 1,3,4-thiadiazoles as potential anticancer agents: pro-apoptotic, cell cycle arrest, molecular modelling, and ADMET profile.

A series of novel 1,3,4-thiadiazoles was synthesized the reaction of -(5-(2-cyanoacetamido)-1,3,4-thiadiazol-2-yl)benzamide (3) with different carbon electrophiles and evaluated as potential anticancer agents. The chemical structures of these derivatives were fully elucidated using various spectral and elemental analyses. Out of 24 new thiadiazoles, derivatives 4, 6b, 7a, 7d, and 19 have significant antiproliferative activity.

Synthesis, Antiproliferative Activity, and Apoptotic Profile of New Derivatives from the Meta Stable Benzoxazinone Scaffold.

Background: Cancer exerts a huge strain on the health system. The emerging resistance to the current chemotherapies demands the continuous development of new anticancer agents with lower cost, higher efficacy, and greater specificity.

Objective: This study aimed at developing selective small molecules as targeted anticancer agents.

Antiproliferative Activity of Some Newly Synthesized Substituted Pyridine Candidates Using 4-(Aaryl)-6-(naphthalen-1-yl)-2-oxo-1,2-dihydropyridine-3-carbonitrile as Synthon.

Herein, we used nicotinonitrile derivatives , as scaffolds to build novel and active antineoplastic agents. The reaction of nicotinonitrile derivatives , with POCl/PCl and/or hydrazine hydrate afforded 2-chloropyridones , and 2-hydrazinyl nicotinonitrile derivatives ,, respectively, as building blocks for various heterocyclic compounds. The structures of all of the synthesized heterocycles were elucidated from their spectral and elemental analyses.

Design, eco-friendly synthesis, molecular modeling and anticancer evaluation of thiazol-5(4)-ones as potential tubulin polymerization inhibitors targeting the colchicine binding site.

In recent years, suppressing tubulin polymerization has been developed as a therapeutic approach for cancer treatment. Thus, new derivatives based on thiazol-5(4)-ones have been designed and synthesized in an eco-friendly manner. The synthesized derivatives have the same essential pharmacophoric features of colchicine binding site inhibitors.

Synthesis, Antiproliferative, and Antioxidant Evaluation of 2-Pentylquinazolin-4(3)-one(thione) Derivatives with DFT Study.

The current study was chiefly designed to examine the antiproliferative and antioxidant activities of some novel quinazolinone(thione) derivatives -. The present work focused on two main points; firstly, comparing between quinazolinone and quinazolinthione derivatives. Whereas, antiproliferative (against two cell lines namely, HepG2 and MCF-7) and antioxidant (by two methods; ABTS and DPPH) activities of the investigated compounds, the best quinazolinthione derivatives were and which exhibited excellent potencies comparable to quinazolinone derivatives and , respectively.

Multicomponent synthesis of 4-arylidene-2-phenyl-5(4H)-oxazolones (azlactones) using a mechanochemical approach.

Background: Mechano heterocyclic chemistry (MCH) is a recent quickly growing technique in the synthesis of heterocycles and draws the attention of heterocyclic chemists towards the uses of grindstone technique in a solvent free green efficient synthesis of many heterocyclic systems. On the other hand, multicomponent approach has opened the door for the rapid and efficient one-step procedures to synthesize a wide range of complex targets. Azlactones have been reported to exhibit a wide range of pharmaceutical properties including immune suppressive, anticancer.

Use of Phthalimidoacetyl Isothiocyanate as a Scaffold in the Synthesis of Target Heterocyclic Systems, and Their Antimicrobial Assessment.

Phthalimidoacetyl isothiocyanate underwent addition-cyclization reactions with some nitrogen and carbon nucleophilic reagents. Simultaneous or subsequent cyclization of the obtained adducts gave target heterocyclic systems such as 1,2,4-triazoles, 1,3-diazines, 1,3-oxazines and thiourea attached to a phthalimido moiety. The antimicrobial activity of the synthesized compounds was tested.