Conformation analysis of three germacranolides by the PM3 semi-empirical method

Autor: Milosavljević Slobodan, Juranić Ivan O., Aljančić Ivana, Vajs Vlatka, Todorović Nina
Jazyk: angličtina
Rok vydání: 2003
Předmět:
Zdroj: Journal of the Serbian Chemical Society, Vol 68, Iss 4-5, Pp 281-289 (2003)
Druh dokumentu: article
ISSN: 0352-5139
1820-7421
DOI: 10.2298/JSC0305281M
Popis: The conformations of the C-6 lactonized germacranolides 1–3 were calculated by applying the PM3 semi-empirical method. The low-temperature 1H-NMR spectra of parthenolide (1) were also measured. The relations between the calculated and the experimentally determined geometries were established using a modified Karplus equation. The applied quantum-chemical calculations proved to be an efficient and easy-to-use tool for the elucidation and prediction of the properties of germacranolide-type sesquiterpene lactones.
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