Based on the chemical structure of Pyrroloquinoline quinone (PQQ), a novel class of indole-2-carboxylate derivatives was designed, synthesized and assayed for antiproliferative activity in cancer cells in vitro. The biological results showed that some derivatives exhibited significant antiprolif...
The synthesis and study of a novel series of potential prodrugs of indomethacin, ketoprofen, ibuprofen and aspirin are reported. 2-Formylphenyl esters of the NSAIDs, together with two 6-substituted 2-formyl and two 2-acylphenyl aspirins and 4-formylphenyl indomethacin, have been prepared. A stud...
Eight novel fluorescent heterocyclic acid dyes were prepared by diazotizing various sulphonic acid based amines and coupling with 4-hyrdoxyl-1-methyl-2(1H)-quinolone. Structures of synthesized dyes were well supported by 1H NMR, 13C NMR, Mass spectroscopy, FTIR and elemental analysis. The effect...
Liquid and solid-state infrared and liquid-state Raman spectra were obtained for meso-3.4-dibromohexane and meso-2,3,4,5-tetrahromohexane. The spectra show the dibromohexane to exist as two or more conformations in the neat liquid, including one that is centrosymmetric and one that is not centro...
Acrylamides are fundamental Michael acceptors which have been used profoundly in synthetic, medicinal and polymer chemistry. However, due to their lower reactivity they have been least used in Morita-Baylis-Hillman (MBH) reaction and have been out of its vinylogus version Rauhut Currier (RC) rea...
The aim of the present paper is to assess the antimicrobial activity of novel narrow band gap semiconductor photocatalysts under visible light irradiation, compared to titanium dioxide, which is the conventionally used photocatalytic material. Bismuth oxide, bismuth tungstate and titanium dioxid...
Two kinds of bismuth tungsten oxide nanocrystals were prepared by microwave hydrothermal method. The morphology modulation of nanocrystals synthesized with precursor suspension's pH varied from 0.25 (strong acid) to 10.05 (base) was studied. The 3D flower like aggregation of Bi2WO6 nanoflak...
Highly efficient water oxidation utilizing visible light is a crucial step in water splitting. Bismuth vanadate (BiVO4) single crystal particles have attracted much attention in water oxidation recently, owing to their outstanding physicochemical properties and exposed active facets. The perform...
Herein, the metallic Bi-modified Bi3.84W0.16O6.24 hybrid with oxygen deficiencies is synthesized via a facile one-pot solvothermal reduction method. The synergistic effect of the deposited Bi metal and oxygen deficiencies results in the effective separation of the photogenerated carriers in Bi3....
A series of bismuth tungsten oxides, Bi2WO6, Bi3.84W0.16O6.24, Bi2WO6/WO3(H2O)0.33 and Bi2W2O9 have been synthesized with different morphologies. Their electrochemical performance as Li-ion battery anodes has been found to be strongly dependent on the composition and morphology. Among the obtain...
Bi2MoO6 quantum dot (QDs-BM)/Bi2MoO6 nanosheet (N-BM) homojunction materials were fabricated by a simple method. Under visible light irradiation, the material exhibits significantly enhanced performance in the synergistic removal of heavy metal Cr(VI) and organic dye (RBY). This can be attribute...
Deregulation of many kinases is directly linked to cancer development and the tyrosine kinase family is one of the most important targets in current cancer therapy regimens. In this study, we have designed and synthesized a series of thieno[2,3-d]pyrimidine derivatives as an EGFR and HER2 tyrosi...
Pyrazolo[1,2-a][1,2,4]triazole-1,3-dione derivatives were synthesized via a three component reaction of arylaldehydes, 4-phenylurazole and malononitrile in the presence of a catalytic amount of 2-hydroxyethylammonium formate and 2-hydroxyethylammonium acetate as effective mild basic ionic liquid...
In the present work, the characterization of 4-Amino-3-phenyl-1H-1,2,4-triazole-5(4H)-thione (APTT) molecule was carried out by quantum chemical method and vibrational spectral techniques. The FT-IR (4000–400 cm−1) and FT-Raman (4000–100 cm−1) spectra of APTT were recorded in solid phase. The ...
This research aims at showing that deciphering NMR patterns of peptide anisochronous methylene protons (A and B) coupled to an adjacent NH or CH(X) hydrogen may bring novel structural and dynamical information, using for this purpose four l-Histidine-containing peptides and the NMR patterns of G...
Cationic fluorinated polyacrylate emulsifier-free emulsion was synthesized by ab initio RAFT emulsifier-free emulsion polymerization using fluorine-containing amphiphilic block copolymer poly (2-(dimethylamino) ethyl methacrylate)-b-poly (hexafluorobutyl acrylate) (PDMAEMA-b-PHFBA) macro-RAFT ag...
The objective of the present research is to explore the potential of an additional feature of proton 1D-NMR for the study of the properties of peptides in aqueous solution, namely the magnetic non-equivalence of N-methylene protons in linear acyclic peptides induced by an asymmetric carbon atom ...
The first enantioselective synthesis of cetirizine hydrochloride (1) has been developed using the highly stereospecific chiral oxazaborolidine (CBS) reduction of 4[η6-chromium tricarbonylbenzoyl]chlorobenzene to establish the benzhydryl stereocenter. The chromium tricarbonyl unit also served as...
Three chiral pyridinylmethyl pyrrolidinemethanol derivatives have been synthesized from N-alkylation of (S)-α,α-diphenyl-2-pyrrolidinemethanol and N-carbonylation of l-proline methyl ester. The catalytic asymmetric borane reduction of prochiral ketones was examined in the presence of chiral ox...
A new series of tricarbonyl complexes of rhenium(I) in the ‘2 + 1’ system with the bidentate ligand N-methylpyridine-2-carbothioamide (NC5H4-CS-NH-CH3, LH(Me)NS) and a monodentate ligand, being either an anion (Cl, Br, I or SCN) or a neutral molecule (3,5-dimethylpyrazole (Hdmpz) or imidazole ...
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