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Alkaloids of the genus Narcissus and their biological aktivity
Tanková, Sabina ; Hulcová, Daniela (advisor) ; Opletal, Lubomír (referee)
Charles University, Faculty of Pharmacy in Hradec Králové Department of Pharmacognosy Candidate: Sabina Tanková Supervisor: PharmDr. Daniela Hulcová, PhD. Title of diploma thesis: Alkaloids of the genus Narcissus and their biological activity. Key worlds: Narcissus pseudonarcissus L. cv. Dutch Master, Amaryllidaceae, alkaloids, AChE, BuChE, POP, GSK-3β, biological activity. Alkaloid extract obtained from bulbs of Narcissus pseudonarcissus L. cv. Dutch Master was extracted by ethanol and was purified by liquid-liquid extraction and fractionated by column chromatography to individual fractions. At the end, were obtained 11 pooled fractions, which were used to isolate pure alkaloids. The ND 3-5 / 7 fraction was processed by preparative thin layer chromatography followed by crystallization of pure substances. In total, 5 alkaloid substances of ST1D2, ST1D3, ST2A, ST2B1 and ST3C were obtained from this fraction in various amounts. These substances were determined by GC-MS analysis, NMR analysis and optical rotation. Subsequently, the obtained data were compared with the NIST library spectra and the literature. Isolated substances have been identified as caranine, O-ethyllycorenine, narwedine, pluviine and N-demethylhomolycorine. The alkaloids obtained in sufficient amounts were subsequently subjected to...
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