3 rezultatima
Two alkaloids, belonging to benzylisoquinoline alkaloids, were isolated from Annona squamosa. One of these alkaloids, 6, 7-dimethoxy-1-(α-hydroxy-4-methoxybenzyl)-2-methyl-1, 2, 3, 4-tetrahydroisoquinoline, was isolated for the first time from natural sources, while, the alkaloid, Coclaurine
Biscoclaurine-type alkaloids were examined for ability to act as membrane-stabilizing agents and to protect against lipid peroxidation and deterioration of biological membrane. The following results were obtained. Biscoclaurine-type alkaloids inhibit Fe2+-induced lipid peroxidation of biological
Phytochemical investigation of the roots of Cissampelos pareira Linn. led to the isolation of one new pyrrole alkaloid, cissampeline (1), together with ten known alkaloids, (-)-curine (2), (-)-cyclanoline (3), (+)-tetrandrine (4), (+)-obaberine (5),