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Molecules, Volume 14, Issue 2

2009 February - 25 articles

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Articles (25)

  • Correction
  • Open Access
5 Citations
9,421 Views
1 Page

24 February 2009

In the original published version of this paper [1] we omitted to acknowledge that the work was supported by a grant-in-aid. The acknowledgment is hereby published as follows. [...]

  • Article
  • Open Access
8 Citations
9,382 Views
10 Pages

Synthesis of 1α,25-Dihydroxyvitamin D Analogues Featuring a S2-symmetric CD-ring Core

  • Garrett Minne,
  • Lieve Verlinden,
  • Annemieke Verstuyf and
  • Pierre J. De Clercq

24 February 2009

Three analogues of 1a,25-dihydroxyvitamin D3 (calcitriol), featuring a trans-fused decalin C,D-core with local S2-symmetry, and possessing identical side-chain and seco-B,A-ring structures, have been synthesized starting from readily available (4aR,8...

  • Article
  • Open Access
263 Citations
26,313 Views
18 Pages

Bioactive Metabolites from Spilanthes acmella Murr.

  • Supaluk Prachayasittikul,
  • Saowapa Suphapong,
  • Apilak Worachartcheewan,
  • Ratana Lawung,
  • Somsak Ruchirawat and
  • Virapong Prachayasittikul

19 February 2009

Spilanthes acmella Murr. (Compositae) has been used as a traditional medicine for toothache, rheumatism and fever. Its extracts had been shown to exhibit vasorelaxant and antioxidant activities. Herein, its antimicrobial, antioxidant and cytotoxic ac...

  • Article
  • Open Access
45 Citations
12,762 Views
16 Pages

Design, Synthesis and Anti-HIV Integrase Evaluation of 4-Oxo-4H-quinolizine-3-carboxylic Acid Derivatives

  • Yi-Sheng Xu,
  • Cheng-Chu Zeng,
  • Zi-Guo Jiao,
  • Li-Ming Hu and
  • Ru-gang Zhong

19 February 2009

4-Oxo-4H-quinolizine-3-carboxylic acid derivatives bearing sulfamido, carboxylamido, benzimidazole and benzothiazole substituents have been designed and synthesized. The structures of these new compounds were confirmed by 1H-NMR, 13C- NMR, IR and ESI...

  • Article
  • Open Access
11 Citations
9,123 Views
11 Pages

Antioxidant Effects of Some Drugs on Ethanol-induced Ulcers

  • Mira Popovic,
  • Snezana Janicijevic-Hudomal,
  • Biljana Kaurinovic,
  • Julijana Rasic and
  • Svetlana Trivic

18 February 2009

The aim of this work was to investigate the antioxidant potential of some commonly used drugs (bromocriptine, haloperidol and azithromycin) on alcohol-induced ulcers in the rat. The following parameters were determined: content of reduced glutathione...

  • Article
  • Open Access
73 Citations
18,710 Views
12 Pages

Comparison of Phenolic Acids and Flavan-3-ols During Wine Fermentation of Grapes with Different Harvest Times

  • Rong-Rong Tian,
  • Qiu-Hong Pan,
  • Ji-Cheng Zhan,
  • Jing-Ming Li,
  • Si-Bao Wan,
  • Qing-Hua Zhang and
  • Wei-Dong Huang

18 February 2009

To explore the effects of harvest time on phenolic compounds during wine fermentation, grape berries (Vitis vinifera L. cv. Vidal) were harvested at 17.5, 22.8 and 37.2º Brix and were used to make dry wine, semi-sweet wine and icewine with low alcoho...

  • Article
  • Open Access
44 Citations
17,690 Views
11 Pages

High Quality Bergamot Oil from Greece: Chemical Analysis Using Chiral Gas Chromatography and Larvicidal Activity against the West Nile Virus Vector

  • Melliou Eleni,
  • Michaelakis Antonios,
  • Koliopoulos George,
  • Skaltsounis Alexios-Leandros and
  • Magiatis Prokopios

18 February 2009

Τhe essential oils contained in the rind of the fruit and the leaves of bergamot from Greece (Citrus aurantium subsp. bergamia) were studied. The bergamot trees in question were cultivated on Kefalonia Island. The plant material (leaves and fruits in...

  • Article
  • Open Access
16 Citations
14,183 Views
13 Pages

2-(3,4-Dihydro-4-Oxothieno[2,3-d]pyrimidin-2-ylthio) Acetamides as a New Class of Falcipain-2 Inhibitors. 3. Design, Synthesis and Biological Evaluation

  • Jin Zhu,
  • Tong Chen,
  • Jie Liu,
  • Ruoqun Ma,
  • Weiqiang Lu,
  • Jin Huang,
  • Honglin Li,
  • Jian Li and
  • Hualiang Jiang

16 February 2009

The cysteine protease falcipain-2 (FP-2) of Plasmodium falciparum is a principal cysteine protease and an essential hemoglobinase of erythrocytic P. falciparum trophozoites, making it become an attractive target enzyme for developing anti-malarial dr...

  • Article
  • Open Access
29 Citations
12,256 Views
9 Pages

Polyfunctional Nitriles in Organic Syntheses: A Novel Route to Aminopyrroles, Pyridazines and Pyrazolo[3,4-c]pyridazines

  • Saleh M. Al-Mousawi,
  • Moustafa Sherief Moustafa,
  • Herbert Meier,
  • Heinz Kolshorn and
  • Mohamed Hilmy Elnagdi

16 February 2009

Phenacylmalononitrile 1 reacts with dimethylformamide dimethyl acetal to yield an enaminone which could be readily converted into a pyrrole or an aminopyridazine by treating with ammonium acetate and hydrazine hydrate, respectively. Compound 1 reacte...

  • Article
  • Open Access
334 Citations
30,445 Views
17 Pages

Ethanolic Extract of Propolis (EEP) Enhances the Apoptosis- Inducing Potential of TRAIL in Cancer Cells

  • Ewelina Szliszka,
  • Zenon P. Czuba,
  • Maciej Domino,
  • Bogdan Mazur,
  • Grzegorz Zydowicz and
  • Wojciech Krol

13 February 2009

Ethanolic extract of propolis (EEP) is one of the richest sources of phenolic acids and flavonoids. EEP and its phenolic compounds have been known for various biological activities including immunopotentiation, chemopreventive and antitumor effects....

  • Communication
  • Open Access
12 Citations
10,302 Views
8 Pages

Properties of an Oral Preparation Containing a Chitosan Salt

  • Yoshifumi Murata,
  • Youko Kodama,
  • Daijirou Hirai,
  • Kyouko Kofuji and
  • Susumu Kawashima

13 February 2009

The 2-(4-chlorophenoxy)-2-methylpropionic acid (CMP) salt of chitosan (CS), CS-CMP, and that of a CS derivative (CP), were prepared and their ability to adsorb bile acids investigated. CS-CMP and CP-CMP rapidly adsorbed taurocholate (TCA) and glycoch...

  • Article
  • Open Access
81 Citations
14,049 Views
8 Pages

13 February 2009

A simple, efficient procedure for the one-pot Biginelli condensation reaction of aldehydes, β-ketoesters and urea or thiourea employing copper(II) sulfamate as a novel catalyst is described. Compared to the classical Biginelli reaction conditions, th...

  • Article
  • Open Access
7 Citations
11,756 Views
8 Pages

13 February 2009

To synthesize 4-chloro-5-methoxy-2-(b-trifluoroethyl)-3(2H)-pyridazinone (4), the reactions of 4-chloro-5-methoxy-3(2H)-pyridazinone (5) with RCH2CF3 (R = I, TsO, MsO, TfO) in different solvents were studied. It was found that methyl group migration...

  • Article
  • Open Access
10 Citations
13,564 Views
6 Pages

A New O-Terpenoidal Coumarin from Clausena anisum-olens Merr.

  • Yun-Song Wang,
  • Hong-Yi Xu,
  • Da-Xiang Wang and
  • Jing-Hua Yang

13 February 2009

A new O-terpenoidal coumarin 1, named hekumarone, was isolated from the leaves and twigs of Clausena anisum-olens Merr.(Rutaceae) collected in Hekou County in Yunnan Province, P. R. China. Structure elucidation and unambiguous NMR assignments for the...

  • Article
  • Open Access
3 Citations
9,796 Views
12 Pages

12 February 2009

(±)-Gusanlung A, 8-oxyberberrubine and (±)-gusanlung D have been synthesized by radical cyclisation of the corresponding 2-aroyl-1-methylenetetra- hydroisoquinolines. The 1H and 13C spectra of (-)-gusanlung D were found to be different from those of...

  • Article
  • Open Access
14 Citations
9,815 Views
15 Pages

11 February 2009

A variety of 4-(un)substituted phenylcarbamoyl methyl ester-containing compounds 3a-d, 5a-d and 7a-d were synthesized via reaction in N,N-dimethylformamide of (un)substituted chloroacetanilides 2a-d with the potassium salts of ibuprofen (1), naproxen...

  • Review
  • Open Access
138 Citations
25,480 Views
44 Pages

11 February 2009

The increasing diffusion of herbal products is posing new questions: why are products so often different in their composition and efficacy? Which approach is more suitable to increase the biochemical productivity of medicinal plants with large-scale,...

  • Article
  • Open Access
44 Citations
15,162 Views
12 Pages

10 February 2009

A number of N-(arylcarbamothioyl)cyclohexanecarboxamide derivatives (aryl substituents: phenyl, 2-chlorophenyl, 3-chlorophenyl, 4-chlorophenyl, o-tolyl, p-tolyl, 3-methoxyphenyl, 4-methoxyphenyl and naphthalen-1yl) have been synthesized. The compound...

  • Review
  • Open Access
19 Citations
13,950 Views
22 Pages

6 February 2009

Prodrug design for brain delivery of small- and medium-sized neuropeptides was reviewed, focusing on thyrotropin-releasing hormone and structurally related peptides as examples. We have summarized our most important advances in methodology, as well a...

  • Article
  • Open Access
310 Citations
40,719 Views
12 Pages

Antimicrobial Activity of Five Herbal Extracts Against Multi Drug Resistant (MDR) Strains of Bacteria and Fungus of Clinical Origin

  • Rosina Khan,
  • Barira Islam,
  • Mohd Akram,
  • Shazi Shakil,
  • Anis Ahmad Ahmad,
  • S. Manazir Ali,
  • Mashiatullah Siddiqui and
  • Asad U. Khan

4 February 2009

Antimicrobial activities of the crude ethanolic extracts of five plants were screened against multidrug resistant (MDR) strains of Escherichia coli, Klebsiella pneumoniae and Candida albicans. ATCCstrains of Streptococcus mutans, Staphylococcus aureu...

  • Communication
  • Open Access
12 Citations
14,890 Views
10 Pages

Stereochemistry of 16a-Hydroxyfriedelin and 3-Oxo-16-methylfriedel-16-ene Established by 2D NMR Spectroscopy

  • Lucienir Pains Duarte,
  • Roqueline Rodrigues Silva de Miranda,
  • Salomão Bento Vasconcelos Rodrigues Rodrigues,
  • Grácia Divina De Fátima Silva,
  • Sidney Augusto Vieira Filho and
  • Vagner Fernandes Knupp

4 February 2009

Friedelin (1), 3b-friedelinol (2), 28-hydroxyfriedelin (3), 16a-hydroxyfriedelin (4), 30-hydroxyfriedelin (5) and 16a,28-dihydroxyfriedelin (6) were isolated through fractionation of the hexane extract obtained from branches of Salacia elliptica. Aft...

  • Article
  • Open Access
22 Citations
15,825 Views
13 Pages

4 February 2009

3-Phenylamino-4-phenyl-1,2,4-triazole-5-thione was synthesized and characterized by elemental analysis, IR and X-ray single crystal diffraction. Density functional theory calculations of the structure, natural bond orbitals, atomic charge distributio...

  • Communication
  • Open Access
34 Citations
9,830 Views
12 Pages

4 February 2009

Low-molecular weight poly(ε-caprolactone), polylactides and copolymers of ε-caprolactone and lactides were obtained by the polymerization of cyclic esters in the presence of a carnitine/SnOct2 system. Their structures were proven by means of MALDI-TO...

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Molecules - ISSN 1420-3049