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Pregnene derivatives from Solenostemma argel leaves.
Hassan, H A; Hame, A I; El-Emary, N A; Springue, I V; Mitome, H; Miyaoka, H.
Phytochemistry ; 57(4): 507-11, 2001 Jun.
Article in English | MEDLINE | ID: mdl-11394848

ABSTRACT

Two new pregnene derivatives 14beta-15alpha-dihydroxy-delta4pregnene-3,20 dione and 3beta-14beta,15alpha-16alpha hydroxy-20-oxo-delta5pregnene-tetra-ol, in addition to alpha- and beta-amyrin and beta-sitosterol, were isolated from Solenostemma argel leaves. The structures were established by extensive spectral analysis as well as comparison with reference materials.


Subject(s)
Biological Factors/chemistry , Biological Factors/isolation & purification , Plants, Medicinal/chemistry , Sitosterols/chemistry , Triterpenes/chemistry , Africa, Northern , Medicine, Traditional , Oleanolic Acid/analogs & derivatives , Plant Leaves/chemistry , Sitosterols/isolation & purification , Triterpenes/isolation & purification
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