Complexes of the negatively charged tetrachloroplatinum (II) dianion and the positively charged triaminotriphenylmethane nuclear dyes, Basic Fuchsin and Methyl Green have been prepared. Elemental analysis indicated that the complexes associate as PtCl4(Basic Fuchsin)2 and PtCl4(Methyl Green) in ...

As a continuation of our search for novel histamine H3 receptor ligands, a series of twenty four new tert-butyl and tert-pentyl phenoxyalkylamine derivatives (2−25) was synthesized. Compounds with three to four carbon atoms alkyl chain spacer were evaluated for their binding properties at human ...

Despite the massive efforts to develop the treatment of pancreatic cancers, no effective application exhibits satisfactory clinical outcome. Macropinocytosis plays a critical role for continuous proliferation of pancreatic ductal adenocarcinoma (PDAC). In this study, we generated a screening met...

One new flavanonol, demethylmatteucinol (1), and nine new flavanone glucoside derivatives, matteflavosides H-J (2–4) and matteuinterates A-F (5–10), were isolated from the rhizomes of Matteuccia intermedia C.Chr., along with 21 known flavanones (11−31). Notably, all of them contain C-methylati...

In this paper we define and study the global Hilbert-Kunz multiplicity and the global F-signature of prime characteristic rings which are not necessarily local. Our techniques are made meaningful by extending many known theorems about Hilbert-Kunz multiplicity and F-signature to the non-local case.

F-doped α-Ga2O3 thin films with low electrical resistivity were epitaxially grown on c-plane α-Al2O3 substrates by means of mist chemical vapor deposition. The resistivity of the α-Ga2O3 thin films was decreased dramatically by incorporating F into α-Ga2O3, achieving a minimum resistivity of...

A sensitive nanocomplex probe prepared from fluorescent polydopamine nanoparticles (F-PDA) and cobalt oxyhydroxide (CoOOH) nanosheets was established for the determination of α-glucosidase activity. In this detection system, the fluorescence of F-PDA was firstly quenched by CoOOH nanosheets bas...

A series of C2–symmetric SiMe2-bridged bis-indenyl zirconium complexes containing 2-methyl-4-aryl/isopropyl-5-amino/pyrrolyl-6-alkylindenyl fragments have been synthesized and unambiguously characterized. These complexes activated by MAO demonstrated high catalytic activity in homo- and heterog...

In the present study a series of fifteen 2-heteroarylidene-1-indanone derivatives were synthesised and evaluated as inhibitors of recombinant human monoamine oxidase (MAO) A and B. These compounds are structurally related to series of heterocyclic chalcone derivatives which have previously been ...

The interaction of three types of steroids with the GABAA recognition site labeled by the antagonist ligand [3H]SR 95531 was evaluated in rat brain cortical membranes. The first type is the GABA site antagonist RU 5135, which potently (IC50 7 nM) but also incompletely (Imax 82%) displaced [3H]SR...

SummaryAn operationally simple organo-Brønsted-acid-catalyzed asymmetric and regioselective “dial up and lock in” of one or more stable isotopes into organic compounds is unknown. Here, we describe a newly designed, chemically versatile protocol mediating single- or multiple-isotope incorporat...

Triazolyl derivatives of amines were prepared using click chemistry and evaluated as releasing systems in mildly acidic environments. Triazolylcarbamates and alkylamines were obtained, depending on the reactivity of the propargylic intermediates used for the Huisgen cycloaddition. A fast hydroly...

Standard (p° = 0.1 MPa) molar enthalpies of formation at the temperature T = 298.15 K of the 2-, 3-, and 4-iso-butoxybenzoic acids were measured using the combustion calorimetry. Standard molar enthalpies of vaporization and sublimation were derived from the vapor pressure temperature dependenc...

The present research work explores the structural, vibrational, electronic, non linear optical, biological and thermodynamic properties of the title compound. The compound has been characterized using spectroscopic techniques like FT-IR and FT-Raman. The above results were compared with the data...

New Cu(II) and Zn(II) complexes of 2-(naphthalen-1-yloxy)-N′-(1-(pyridin-2-yl)ethylidene) acetohydrazide (HA2PNA) have been prepared and characterized by elemental analyses, spectral (IR, UV–visible, ESR and 1H NMR) as well as magnetic and thermal measurements. According to the data, the compl...

A series of 2-(naphthalen-2-yloxy)propionic acid derivatives were prepared. The hypolipidemic activity of the new compounds as well as the intermediate acid 2 was evaluated in the high cholesterol diet (HCD) fed hyperlipidemic rat model. Interestingly, the S-alkylated mercaptotriazole 8b and the...

Stereoselective synthesis of vinylstannanes bearing a carboxylic acid function was achieved from β-γ alkynoic acids via hydrostannation, stannylcupration or silastannation reactions. Regioselectivity is highly dependent on the nature of the stannylanions used and on protection of the carboxyli...

New thiazolylpyrazolyl coumarin derivatives were synthesized and tested for their anticancer potential in vitro against five different human cell lines, including breast MCF-7, lung A549, prostate PC3, liver HepG2 and normal melanocyte HFB4. Breast carcinoma revealed higher sensitivity towards c...

The overexpress of COX-2 was clearly associated with carcinogenesis and COX-2 as a possible target has long been exploited for cancer therapy. In this work, we described the design and synthesis of a series of diarylpyrazole derivatives integrating with chrysin. Among them, compound e9 exhibited...

This paper describes the synthesis and the antiproliferative activities of compounds 9a–r, 3-aryl analogs of flavone-8-acetic acid that bear diverse substituents on the benzene rings at the 2- and 3-positions of the flavone nucleus. Their direct and indirect cytotoxicities were evaluated agains...