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Aristolochia constricta

C. triangularis (Asclepiadaceae) [root] Aristolochia constricta (Aristolochiaceae) Aristolochia constricta (Aristolochiaceae)... [Pg.175]

Protopine alkaloids are apparently not very common in Aristolochia and however, constrictosme (135), 3-0-methylconstrictosine (136), 3,5-di-O-methyl-constrictosine (137), 5,6-dihydroconstrictosine (138) and 5,6-dihydro-3,5-di-0-methylconstrictosine (139) are the only examples of the protopine alkaloids [280], Their occurrence in Aristolochia was also strictly confined to A. constricta [280]. Protopine alkaloids are usually reported as C-2 substituted on the basis of biogenetic considerations. The unusual absence of C-2 substitution was noticed in the protopines of Aristolochia. [Pg.888]

See other pages where Aristolochia constricta is mentioned: [Pg.75]    [Pg.75]    [Pg.76]    [Pg.76]    [Pg.76]    [Pg.175]    [Pg.175]    [Pg.176]    [Pg.11]    [Pg.11]    [Pg.11]    [Pg.11]    [Pg.12]    [Pg.75]    [Pg.75]    [Pg.76]    [Pg.76]    [Pg.76]    [Pg.175]    [Pg.175]    [Pg.176]    [Pg.11]    [Pg.11]    [Pg.11]    [Pg.11]    [Pg.12]    [Pg.856]    [Pg.887]   
See also in sourсe #XX -- [ Pg.982 ]

See also in sourсe #XX -- [ Pg.11 , Pg.12 ]



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Aristolochia

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