Two dioxoaporphine alkaloids, iV-methylouregidione (1) and ouregidione (2), and two oxoaporphine alkaloids, liriodenine (3) and oxostephanine (4), were isolated from the aerial part of Pseuduvaria setosa (King) J. Sinclair. All four alkaloids displayed antituberculosis activity against ...
Biological Activity of Quinoline Alkaloids from Raulinoa echinata and X-ray Structure of Flindersiamine. Journal of the Brazilian Chemical Society, v. 13, p.66-70, 2002.Biavatti MW, Vieira PPC, Da Silva MFGF, Fernandes JB, Victor SR, Pagnocca FC, De Albuquerque S, Caracelli I, Schp...
Triterpenoidal alkaloids from Buxus natalensis and their acetylcholinesterase inhibitory activity. Acetylcholinesterase (AChE) inhibition-directed phytochemical studies on the methanolic extract of Buxus natalensis, collected in South Africa, resulted in... WL Matochko,A James,CW Lam,... - 《Journal of ...
Ricinine is one of main toxic alkaloid in castor bean (Ricinus communis L.). Ricinine has some insecticidal effects on the three insect pests and a hepatoprotective activity. Furthermore, ricinine showed some typical central nervous system stimulant effects when administered to mice. At lower dos...
Chapter 3 Biological Activity of Unnatural Alkaloid Enantiomers * * This paper is dedicated to Professor Dr. Vladimir Prelog from the Laboratorium for Org. Chemie. ETH-Zentrum, Zürich. Switzerland, on the occasion of his 90th birthday.[J] . Arnold B...
Chemistry and Biological Activity of Alkaloids from the Genus Lycoris (Amaryllidaceae) Lycoris Herbert, family Amaryllidaceae, is a small genus of about 20 species that are native to the warm temperate woodlands of eastern Asia, as in China, ... L Cahlíková,K Breiterová,O Lu - 《Molecules...
Multiple chromatographic separation of the methanol leaf extract afforded the flavonoid maeopsin-6-O-glucoside (S1) and a few fractions that were subjected to biological activity assays. One fraction exhibited interesting antibacterial activity against E. coli and E. faecalis (MIC values of 62.5 and...
Phytochemical investigation of the hexane and CH2Cl2 extracts of Erythrina stricta roots and E. subumbrans stems led to the isolation of six pterocarpans, one flavanone, one isoflavone, two alkaloids, five triterpenes, six steroids and alkyl trans-ferulates. The structures of all known compounds ...
The biological activity of Cryptolepis obtusa roots and their contained novel steroidal alkaloidsNo abstract is available for this article.doi:10.1111/j.2042-7158.1998.tb02423.xM. A. PauloDepartment of Pharmacognosy, Faculty of Pharmacy, University of Lisbon, 1600 Lisbon, PortugalE. T. Gomes...
Here are show recent advances in the phytochemistry and biological activities of selected members of Rhamnaceae from Latin-America. 展开 关键词:Rhamnaceae Cyclopeptidealkaloids Condalia Talguenea Discaria Triterpenes Insecticidal activity DOI: 10.1007/s11101-015-9404-6 被引量: 10 ...