Gábor Günther
University of Szeged
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Gábor Günther.
Journal of Molecular Structure | 2000
Ferenc Fülöp; Enikő Forró; Tamás A. Martinek; Gábor Günther; Reijo Sillanpää
Abstract 1,3,2-Oxazaphosphorino[4,3- a ]isoquinolines 8a,b, 9a,b and 10a were synthesized by the reactions of homocalycotomine 7 with appropriate dichlorophosphorus derivatives, such as phenylphosphonic dichloride, bis(2-chloroethyl)phosphonic dichloride or phosphoryl chloride. In spite of the blocking effect of the connecting isoquinoline ring system, the oxazaphosphorinane moiety exists as a chair–twist equilibrium, where the conformer ratios are strongly dependent on the P-4 configuration and the stereoelectronic properties of the substituents.
Journal of The Chemical Society-perkin Transactions 1 | 1994
Judit Hohmann; Gábor Nagy; Gábor Günther; Gyula Argay; Alajos Kálmán; Gábor Czira
Four new dihydro-β-agarofuran polyesters 1–4 have been isolated from the fruit of Euonymus sachalinensis(Celastraceae) and their structures elucidated by means of 1H and 13C NMR spectroscopy, including 1H–1H COSY, DEPT, 1H–13C COSY and COLOC measurements, mass spectrometry and chemical reactions. The configurations have been determined on the basis of NOESY spectra and X-ray analysis. The isolated compounds are the first native representatives of 3, 12-oxygenated dihydro-β-agarofuran in which the usual macrocycle is missing. The structural similarity of compounds 1–4 and the macrocyclic derivatives is noteworthy from a biogenetic point of view.
Journal of Organic Chemistry | 2000
Tamás A. Martinek; Eniko Forró; Gábor Günther; Reijo Sillanpää; Ferenc Fülöp
Journal of Natural Products | 1997
Judit Hohmann; Andrea Vasas; Gábor Günther; Imre Máthé; Ferenc Evanics; György Dombi; Gyula Jerkovich
Planta Medica | 1997
Judit Hohmann; Zsuzsanna Páll; Gábor Günther; Imre Máthé
Journal of Natural Products | 1998
Zsuzsanna Hajdú; Erzsébet Varga; Judit Hohmann; Alajos Kálmán; Gyula Argay; Gábor Günther
Journal of Natural Products | 1995
Judit Hohmann; Gábor Nagy; Zuber Dini; Gábor Günther; István Pelczer; Gyula Jerkovich; László Varjas
Journal of Natural Products | 1999
Judit Hohmann; Gábor Günther; Andrea Vasas; and Alajos Kálmán; Gyula Argay
Acta pharmaceutica Hungarica | 2001
Ferenc Evanics; Judit Hohmann; Dóra Rédei; Andrea Vasas; Gábor Günther; György Dombi
Fitoterapia | 1996
Judit Hohmann; L. Toth; Imre Máthé; Gábor Günther