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Alkaloids of family Amaryllidaceae and their analogues as potential drugs
Kavková, Zuzana ; Cahlíková, Lucie (advisor) ; Němeček, Jan (referee)
Charles University in Prague Faculty of Pharmacy in Hradec Králové Department of Pharmaceutical Botany and Ecology Candidate: Zuzana Kavková Supervisor: doc. Ing. Lucie Cahlíková, Ph.D. Title of diploma thesis: Alkaloids of family Amaryllidaceae and their analogues as potential drugs The object of this diploma thesis was to prepare derivatives of alkaloids of Amaryllidaceae family and to deal with their biological activity. These alkaloids are famous for their antibacterial, antiinfectives, antifungal, antimalarial and inhibitory activity against AChE, BuChE and POP and also for cytotoxic effect against cell lines. In the current studies about anticancer activity it was found that the most active alkaloids are Amaryllidaceae alkaloids of these types: lycorine, crinane and pancratistatine. Their biological activity relates closely with their structure. The changes of different parts of the structure can explain the relationship between structure and activity, and also the importance of their organization which is necessary for starting the activity. Based on this finding were for the experiments chosen alkaloids like haemanthamine, haemanthidine and lycorine. An eleven derivatives were prepared and identified mostly by GC-MS and NMR. These derivatives were tested on a wide spectrum of tumor lines....
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Alkaloids of family Amaryllidaceae: genus Lycoris.
Nekolná, Petra ; Cahlíková, Lucie (advisor) ; Macáková, Kateřina (referee)
Author: Petra Nekolná Title: Alkaloids of family Amaryllidaceae: genus Lycoris Diploma thesis Charles University in Prague, Faculty of Pharmacy in Hradec Králové, Department of Pharmaceutical Botany and Ecology 2015, 79 p. The aim of this diploma thesis was to summarize the findings about alkaloids which were isolated from Lycoris plants of Amaryllidaceae family. It contains a botanical characteristics of species of genus Lycoris which were studied phytochemically, a file of alkaloids which were isolated from these plants and findings about the biological activity of these compounds. Within the genus Lycoris 11 species were studied phytochemically and 118 alkaloids were isolated from these plants. Alkaloids which were isolated from Lycoris plants are divided in several structural groups. The lycorine-, homolycorine-, crinine-, galanthamine- and pancratistatine-type alkaloids occur the most numerously. Anticancer, acetylcholinesterase-inhibitory and antimalarial activity of the alkaloids were described. The biological activity of alkaloids is connected with their structure. The most significant anticancer activity was observed in alkaloids from lycorine-, crinine- and pancratistatine-type. Acetylcholinesterase-inhibitory activity was pronounced the most in galanthamine-type alkaloids. The most...
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