I= STUDIES IN THE CHEMICAL CONSTITUENTS OF ANDRACHNE ASPERA SPRENG (EUPHORBIACEAE)
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Title of Thesis
STUDIES IN THE CHEMICAL CONSTITUENTS OF ANDRACHNE ASPERA SPRENG (EUPHORBIACEAE)
Author(s)
Arshead Kamal
Institute/University/Department Details
University Of Karachi / H.E.J Research Institution Of Chemistry
Session
2001
Subject
Chemistry
Number of Pages
154
Keywords (Extracted from title, table of contents and abstract of thesis)
biosynthesis of alkaloids, genus andrachene, akaloids, aspertin, terpenes, tupeol acetate, germanical, oleanolic acid, lupeol, β-sitosterol, stigmasterol, α-taraxerol, α-amyrin, β-amyrin, steroids

Abstract
The thesis is concerned with study of the chemical constituents of Andrachne aspera Spreng. The thesis is divided into two parts, first one described the isolation of alkaloids, the second part dealt with the isolation of terpenes and steroids from the plant.

First Par(Pat-A)

The introduction of this part reviews the general historical background of the phytochemical constituents and their medicinal importance, with particular emphases on alkaloids, followed by a bref description of the plant, with past and present work on it. During the phytochemical studies four new alkaloids namely aspertn-A, aspertin-B, aspertin-C and aspertin-D were isolated from andrachne aspera, whose structures were elucidated using modern spectroscopic techniques.

Second Part (Part-B)

This part includes the introduction, experimental, results and discussion on the isolation and structure elucidation of terpenes and steroids. First portion of this part very precisely describe, the nature of terpenes and their classes etc. the results & discussion, experimental parts are concerned with the isolation techniques and structure elucidation of tepenes form Andrachne aspera. Nine known compounds, were isolated and characterized for he first time from this plant.
Download Full Thesis
24209.04 KB
S. No. Chapter Title of the Chapters Page Size (KB)
1 0 Contents
1122.88 KB
2 1 Introduction 1
3373.29 KB
3 2 Biosynthesis Of Alkaloids 20
712.32 KB
4 3 Genus Andrachene 27
1021.74 KB
5 4 Experimental 31
4116.06 KB
6 5 Results And Discussion 66
4532.21 KB
7 6 References 91
524.88 KB
8 7 Introduction 95
3063.95 KB
9 8 Experimental 114
2029.13 KB
10 9 Results And Discussion 126
2446.04 KB
11 10 References 145
1478.68 KB