ABSTRACT
Two new prenylflavonoids, morusalbols A and B (1 and 2), were isolated from the branches and leaves of Morus alba, together with three known compounds, kuwanon C (3), morusin (4), morusinol (5). The structures of these two prenylflavonoids were elucidated by extensive analyzes of the spectroscopic data.
Subject(s)
Flavonoids/isolation & purification , Morus/chemistry , Flavonoids/chemistry , Flavonoids/pharmacology , Molecular Structure , Nuclear Magnetic Resonance, Biomolecular , Plant Leaves/chemistryABSTRACT
Two new compounds, 19-hydroxy-melodinine K (1) and melodiside (2), and 25 known compounds were isolated from leaves and twigs of Melodinus suaveolens. Their structures were elucidated based on 1- and 2-D NMR, FTIR, UV and MS spectroscopic data. 19-hydroxy-melodinine K showed cytotoxic activity against MDA-MB-231 breast, BCG-823 gastric, SW480 colon and Hela cancer cells.
Subject(s)
Apocynaceae/chemistry , Antineoplastic Agents, Phytogenic/pharmacology , Cell Line, Tumor , Humans , Magnetic Resonance Spectroscopy , Plant Leaves/chemistryABSTRACT
Two new xanthones, angustins A and B (1 and 2), were isolated from the aerial parts of Swertia angustifolia together with six known compounds (3-8). The structures of these two xanthones were elucidated by extensive analysis of the spectroscopic data. In addition, compounds 3 and 6-8 were isolated from this plant for the first time.
