The Existence of Isosteroidal Alkaloids in Fritillaria L.(Liliaceae) and Its Taxonomical Significance

Yu Shi-Chun, Xiao Pei-Gen

Received:1900-01-01 Revised:1900-01-01 Online:1992-09-10 Published:1992-09-10
Contact: Yu Shi-Chun

Abstract:

The plant chemotaxonomical marker of Fritillaria L. is discussed in this

paper according to the information on chemical components. Plenty of evidence

shows that 5α-cevanine isosteroidal alkaloids are the characteristic constituents of

this genus. In the light of the biogensis of this kind of alkaloids, the C-13 and

C- 17 of the molecular structures may be rational positions uniting a nitrogenous

group in their biosyntheses which make two kinds of 5α-cevanine isosteroidal

alkaloids, the dihydrogen of C- 13 and C- 17 being at the state of

trans-configuration (e. g. verticine, verticinone) and at the state of cis-

configuration (e.g. delavine, chuanbeinone and songbeinine). Meanwhile, this

paper reports the existence and content of some 5α-cevanine isosteroidal alkaloids

in main Chinese fritillarias. This result reveals that there may be a relationship

between the formation of characteristic constituents on one hand and other

morphological characters and distribution of the plants concerned on the other,

which encourages further investigation.

Key words: Liliaceae, Fritillaria L., Characteristic constituents, 5α-cevanine isosteroidal alkaloids

Yu Shi-Chun, Xiao Pei-Gen. The Existence of Isosteroidal Alkaloids in Fritillaria L.(Liliaceae) and Its Taxonomical Significance[J]. .

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