Pakistan Research Repository

STUDIES ON THE SAPONINS OF GUAIACUM OFFICINALE-L

Fatima, Iqbal (1986) STUDIES ON THE SAPONINS OF GUAIACUM OFFICINALE-L. PhD thesis, University of Karachi, Karachi.

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Abstract

Guaiacum officinale L. (N.O. Zygophyllaceae) is a medicinal and ornamental plant commonly cultivated in the gardens in Pakistan. The present thesis describes the isolation of nine new triterpenoid saponins namely guianin A, guaianin A1, guaianin A2, guaianin B-G from Guaiacum officiale L. (N.O. Zygophyllaceae). Two more saponins namely 3-0-[a-L-rhamnopyranosyl]-30-norolean-12,20(29)-dien-28-oic acid and guaianin, have been isolated which were reported earlier from this plant. The structure of guaianin C is proposed and the structures of gaianin A, Guaianin A1, Guainin B, Guaianin D and Guaianin E were determined.These are as follows 1) 3-0-[a-L-Rhamnopyranosyl (1-2)a-L-arabinopyranosyl]-30-norolean-12,20(29)-dien-28-oic acid (Guaianin A) (71).

Item Type:Thesis (PhD)
Uncontrolled Keywords:saponins, guaiacum officinale-l, zygophyllaceae, triterpenoid saponins, guianin a, guaianin a1, guaianin a2, guaianin b-g
Subjects:Physical Sciences (f) > Chemistry(f2)
ID Code:933
Deposited By:Mr. Muhammad Asif
Deposited On:24 Nov 2006
Last Modified:04 Oct 2007 21:03

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