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Your search keyword '"Attila Mándi"' showing total 16 results
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16 results on '"Attila Mándi"'

1. ChemInform Abstract: Enantioselective Synthesis of Aminoindan Carboxylic Acid Derivatives by the Catalytic Intramolecular [2 + 2 + 2] Cycloaddition of Amino-Acid-Tethered Triynes

Author

Kyalo Stephen Kanyiva, Yu-ki Tahara, Tohru Taniguchi, Kenji Monde, Takanori Shibata, Shuhei Obinata, and Attila Mándi

Subjects
chemistry.chemical_classification, chemistry, Carboxylic acid, Intramolecular force, Enantioselective synthesis, Organic chemistry, General Medicine, Cycloaddition, Amino acid, Catalysis
Published
2016

3. ChemInform Abstract: Absolute Configuration and Antitumor Activity of Torrubiellin B

Author

Wenhan Lin, Georgios Daletos, Peter Proksch, Matthias U. Kassack, Catalina Francis Perez Hemphill, Alexandra Hamacher, Attila Mándi, and Tibor Kurtán

Subjects
Antitumor activity, Chemistry, Stereochemistry, medicine.drug_class, Antibiotics, Absolute configuration, medicine, Torrubiellin B, General Medicine
Published
2015

4. ChemInform Abstract: Structure, Absolute Configuration, and Conformational Study of Resorcylic Acid Derivatives and Related Congeners from the Fungus Penicillium brocae

Author

Bin-Gui Wang, Xiao-Ming Li, Peng Zhang, Attila Mándi, Tibor Kurtán, and Ling-Hong Meng

Subjects
Acid derivative, biology, Chemistry, Penicillium brocae, Stereochemistry, Absolute configuration, General Medicine, Fungus, biology.organism_classification
Abstract

One new resorcylic acid derivative (IV), and five new loop-opened resorcylic acid-related congeners, including brocapyrone A (III), and brocaketones A-D (structure examples (I) and (II)) are isolated together with three known compounds.

Published
2015

5. ChemInform Abstract: Tetrahydroanthraquinone Derivatives from the Endophytic Fungus Stemphylium globuliferum

Author

Werner E. G. Mueller, Chang-Yun Wang, Peter Proksch, Tibor Kurtán, Mohamed S. Abdel-Aziz, Andreas Marmann, Georgios Daletos, Wenhan Lin, Yang Liu, and Attila Mándi

Subjects
Atropisomer, Stemphylium globuliferum, biology, Chemistry, Stereochemistry, General Medicine, Fungus, Endophytic fungus, biology.organism_classification
Abstract

Dihydroaltersolanol B (Ia), dihydroaltersolanol C (Ib), acetylalterporriol D (II) and the atropisomer acetylalterporriol E are isolated from the title fungus.

Published
2015

7. ChemInform Abstract: Varioxepine A, a 3H-Oxepine-Containing Alkaloid with a New Oxa-Cage from the Marine Algal-Derived Endophytic Fungus Paecilomyces variotii

Author

Jia-Ning Wang, Tibor Kurtán, Xiao-Ming Li, Peng Zhang, Xin Li, Bin-Gui Wang, Attila Mándi, and Feng Yu Du

Subjects
endocrine system, biology, Stereochemistry, Chemistry, organic chemicals, Alkaloid, General Medicine, Fungus, Nuclear magnetic resonance spectroscopy, Endophytic fungus, biology.organism_classification, complex mixtures, Paecilomyces variotii, heterocyclic compounds
Abstract

The alkaloid varioexpine A (I) is isolated from the marine fungus Paecilomyces variotii and its structure is characterized by NMR spectroscopy and X-ray analysis.

Published
2015

8. ChemInform Abstract: Brocaeloids A-C, 4-Oxoquinoline and Indole Alkaloids with C-2 Reversed Prenylation from the Mangrove-Derived Endophytic Fungus Penicillium brocae

Author

Chun-Shun Li, Ling-Hong Meng, Xin Li, Bin-Gui Wang, Yang Liu, Tibor Kurtán, Peng Zhang, Attila Mándi, and Xiao-Ming Li

Subjects
Indole test, Prenylation, Penicillium brocae, Stereochemistry, Chemistry, General Medicine, Endophytic fungus, Mangrove
Abstract

The three new brocaeloids (I)-(III) are isolated from the cultures of penicillium brocae MA-192.

Published
2015

9. ChemInform Abstract: Bioactive Rearranged Limonoids from the Chinese Mangrove Xylocarpus granatum Koenig

Author

Attila Bényei, Hai-Li Liu, Yue-Wei Guo, Jia Li, Attila Mándi, Orazio Taglialatela-Scafati, Zhen Fang Zhou, Wen Zhang, and Tibor Kurtán

Subjects
Traditional medicine, biology, Chemistry, Xylocarpus granatum, General Medicine, Mangrove, biology.organism_classification, Protein Tyrosine Phosphatase 1B, hormones, hormone substitutes, and hormone antagonists
Abstract

Two new pyridine-containing limonoids, xylogranatopyridines A (I) and B (II) and their formal precursor, prexylogranatopyridine (III), are isolated and evaluated for their protein tyrosine phosphatase 1B (PTP1B) activity.

Published
2015

10. ChemInform Abstract: Sarsolenane and Capnosane Diterpenes from the Hainan Soft Coral Sarcophyton trocheliophorum Marenzeller as PTP1B Inhibitors

Author

Jia Li, Wen Zhang, Attila Mándi, Li-Xin Gao, Yue-Wei Guo, Lin Fu Liang, and Tibor Kurtán

Subjects
Terpene, Chemistry, Stereochemistry, Coral, Sarcophyton trocheliophorum, Absolute configuration, General Medicine, Protein tyrosine phosphatase, Related derivatives
Abstract

Two new sarsolenane diterpenes, dihydrosarsolenone (2), methyl dihydrosarsolenoneate (3), and two new capnosane diterpenes, sarsolilides B (5) and C (6), were isolated together with the known analogue, sarsolilide A (4), from the Hainan soft coral Sarcophyton trocheliophorum Marenzeller. Their structures were elucidated by detailed spectroscopic analysis and by comparison with reported data, leading to a structure revision of sarsolenone (1). The absolute configurations of 2 and 5 were determined by TDDFT ECD calculations, and they could be used as ECD reference compounds in the determination of the absolute configuration of their related derivatives. Compounds 4 and 5 exhibited inhibitory activity in vitro against protein tyrosine phosphatases 1B (PTP1B), representing the first report of PTP1B inhibitory activity for capnosane diterpenes.

Published
2015

11. ChemInform Abstract: Oxidation of Enol Acetate of Flavanone with Thallium(III) Nitrate or Phenyliodonium Diacetate: A Convenient New Route to Isoflavone and Flavone

Author

Attila Kiss-Szikszai, Sándor Antus, Katalin Gulácsi, Tibor Kurtán, István Komáromi, István Németh, and Attila Mándi

Subjects
Reaction conditions, chemistry.chemical_compound, Thallium(III) nitrate, chemistry, General Medicine, Medicinal chemistry, Flavanone, Enol
Abstract

The oxidation of enol acetate of flavone (I) results in the formation of two products whereas, the ratio of flavone (II) and isoflavone (III) strongly depends on the reaction conditions used.

Published
2014

12. ChemInform Abstract: Penibruguieramine A, a Novel Pyrrolizidine Alkaloid from the Endophytic Fungus Penicillium sp. GD6 Associated with Chinese Mangrove Bruguiera gymnorrhiza

Author

Attila Mándi, Orazio Taglialatela-Scafati, Zhen Fang Zhou, Xiao-Hong Yang, Yue-Wei Guo, Meiyu Geng, Tibor Kurtán, and Bo Ping Ye

Subjects
biology, Pyrrolizidine alkaloid, Chemistry, Botany, Penicillium sp. GD6, General Medicine, Endophytic fungus, Mangrove, Isolation (microbiology), Bruguiera, biology.organism_classification
Abstract

The isolation, structure elucidation and biosynthetic pathway of the title compound are described.

Published
2014

13. ChemInform Abstract: Absolute Configuration and Antibiotic Activity of Neosartorin (I) from the Endophytic Fungus Aspergillus fumigatiaffinis

Author

Amal H. Aly, Heike Broetz‐Oesterhelt, Attila Mándi, Tibor Kurtán, Ilka Zerfass, Abdessamad Debbab, Antonius R. B. Ola, Matthias U. Kassack, Alexandra Hamacher, and Peter Proksch

Subjects
Broad spectrum, medicine.drug_class, Chemistry, Antibiotics, medicine, Absolute configuration, General Medicine, Aspergillus fumigatiaffinis, Endophytic fungus, Antibacterial activity, Microbiology
Abstract

The title compound (I) exhibits substantial antibacterial activity against a broad spectrum of Gram-positive bacterial species (e.g. staphylococci, streptococci, enterococci, B.

Published
2014

14. ChemInform Abstract: Structure, Absolute Configuration, and Conformational Study of 12-Membered Macrolides from the Fungus Dendrodochium sp. Associated with the Sea Cucumber Holothuria nobilis Selenka

Author

Wen Zhang, Tie-Jun Li, Peng Sun, Attila Mándi, Dong Xiao Xu, Barbara Schulz, and Tibor Kurtán

Subjects
Dendrodochium, Sea cucumber, biology, Chemistry, Stereochemistry, Absolute configuration, General Medicine, Fungus, biology.organism_classification, Holothuria nobilis
Abstract

isolation, structure determination and cytotoxicity of 13 new 12-membered macrolides, dendrodolides A—M

Published
2013

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