A study of the alkaloids ofLeontice albertii

Conclusions 1. Thaspine, N-methylcytisine, anabasine, matrine, leontine, leontalbinine, and the new alkaloids d-sophoridine and albertidine have been isolated from the epigeal part ofL. Albertii Rgl.2. A new spatial structure has been proposed for sophoridine.Khimiya Prirodnykh Soedinenii, Vol. 5, No. 5, pp. 409–412, 1969     

A study of the alkaloids ofCodonopsis clematidea

Conclusions From the epigeal part ofCodonopsis clematidea, the new alkaloid codonopsine has been isolated; its most probable structure is 1,4-dihydroxy-1,3-dimethyl-5-veratrylpyrrolidine.Khimiya Prirodnykh Soedinenii, Vol. 5, No. 1, pp. 30–32, 1969     

A study of the alkaloids ofSaussurea salsa andS. elegans

Conclusions 1. In the extraction ofS. salsa andS. elegans, the condensation of the neutral substances with ammonia takes place with the formation of products of a basic nature.2. FromS. elegans a new alkaloid elegantine C₂₃H₂₉O₅N has been obtained the saponification of which has given tyramine and a sesquiterpene lactone.Khimiya Prirodnykh Soedinenii, Vol. 4, No. 6, pp. 367–370, 1968     

A study of the alkaloids ofVeratrum lobelianum

Conclusions 1) At the beginning of vegetation, the total alkaloids in the epigeal part ofVeratrum lobelianum is 2.5% of the weight of the dry raw material, and at the end of vegetation, 0.036%.2) The new alkaloids veralosine, veralosinine, and veralosidine have been isolated from the epigeal part of the plant.3) On the basis of a study of chemical properties, IR, UV, NMR, and mass spectra, and also its conversion into tetrahydrosolasodine, structure and configuration I has been proposed as the most probable for veralosidine.Khimiya Prirodnykh Soedinenii, Vol. 6, No. 3, pp. 339–343, 1970     

The alkaloids ofStephania glabra

Summary l-Tetrahydropalmatine and stepharine have been isolated from the tubers ofStephania glabra obtained from India, andl-tetrahydropalmatine and cycleanine have been isolated from the tubers ofStephania cultivated on the Black Sea littoral of the Caucasus.The epigeal parts of the plant cultivated on the Black Sea littoral of the Caucasus have given cycleanine and an alkaloid A of composition C₁₉H₂₁O₄N the study of which is proceeding.Khimiya Prirodnykh Soedinenii, Vol. 1, No. 4, pp. 271–275, 1965     

Mass spectrometry of the alkaloids ofLeontice

Summary A study of the mass spectra of matrine, leontalbine, sophocarpine, and their reduction products has shown the influence of the basicity of the nitrogen atom and of the double bond on the fragmentation process.Khimiya Prirodnykh Soedinenii, Vol. 4, No. 2, pp. 106–109, 1968     

Biogenesis of the alkaloids ofDatura innoxia

Summary 1. It has been shown that acetone, acetate, and methylamine are utilized in the biosynthesis of the tropane alkaloids. The most specific precursor of the alkaloids was acetone.2. Acetate and methylamine are implicated in alkaloid biosynthesis in the roots, and acetone in the leaves. The biosynthetic process does not have a smooth nature but one with a number of maxima.3. The accumulation of hyoscyamine takes place predominantly in the roots and that of scopolamine in the generative organs. The content of scopolamine is higher.Khimiya Prirodnykh Soedinenii, Vol. 3, No. 2, pp. 188–191, 1967