for 14 alkaloids from the roots of Aconitum yesoense var. macroyesoense and of Aconitum japonicum and from the seeds of Delphinium elatum as well as for 25 semisynthetic derivatives. The major alkaloid constituents of A. yesoense var. macroyesoense, kobusine (2) and pseudokobusine (3), a minor alkaloid constituent of A. japonicum, aljesaconitine A (5), and six alkaloid derivatives, N-deethyldelcosine
Antiarrhythmic agents based on diterpenoid alkaloids
作者:M. S. Yunusov
DOI:10.1007/s11172-011-0098-7
日期:2011.4
Diterpenoid alkaloids comprise a large group of natural compounds produced by the plants of the genera Aconitum and Delphinium. Some of these compounds were found to manifest valuable pharmacological properties, including the unique antiarrhythmic activity. Allapinine (derived from the alkaloid lappaconitine) was approved as a drug. The investigation of the structure—activity relationship revealed structural elements responsible for the arrhythmogenic and antiarrhythmic properties.
Application of Liquid Chromatography-Atmospheric Pressure Chemical Ionization Mass Spectrometry to the Differentiation of Stereoisomeric Diterpenoid Alkaloids.
作者:Koji WADA、Takao MORI、Norio KAWAHARA
DOI:10.1248/cpb.48.1065
日期:——
chromatography-atmospheric pressure chemicalionizationmassspectrometry (HPLC-APCI-MS) was successfully applied to seven stereoisomeric diterpenoid alkaloids at position 1 or 12. Comparison of the breakdown curves, observed by changing the potential difference between the first electrode and the second electrode of the APCI ion source, revealed stereochemical dependence of different fragmentations