Amaryllidaceae alkaloids as inspiration for preparation of selective butyrylcholinesterase inhibitors II

CHARLES UNIVERSITY FACULTY OF PHARMACY IN HRADEC KRÁLOVÉ DEPARTMENT OF PHARMACOGNOSY AND PHARMACEUTICAL BOTANY CANDIDATE: Kristýna Králová SUPERVISOR: prof. Ing. Lucie Cahlíková, Ph.D. CONSULTANT: Mgr. Filip Pidaný TITLE OF DIPLOMA THESIS: Amaryllidaceae alkaloids as inspiration of preparation of selective butyrylcholinesterase II Plants of the family Amaryllidaceae are an important source of biologically active substances, which are labeled as Amaryllidaceae alkaloids (AAs). These natural products show a wide range of biological characteristics, for which they are also intensively studied. Their significant biological effects include antiviral, antibacterial, antifungal, anti-inflammatory, antiparasitic, and cytotoxic activity. Their other important characteristic is the ability to inhibit both cholinesterases: acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE). Inhibition of AChE is used in the therapy of Alzheimer's disease (AD). Currently, in the treatment of the symptoms of this disease, one AA, galanthamine, is used. Recently a new structural type of AAs, carltonins, have been isolated from the plant Narcissus pseudonarcissus cv. Carlton. These substances showed a significant inhibitory effect against BuChE and became the inspiration for the synthesis of selective BuChE inhibitors...