Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Cissampelos ovalifolia

These alkaloids were isolated, along with their unsaturated analogs (see Section II,B,4), from Cissampelos ovalifolia D.C., an alleged component of Mac-ushi curare, and characterized in 1970 by chemical interrelation and MS studies. At that time it was shown that the three bases have the same skeleton,... [Pg.9]

These alkaloids, also from Cissampelos ovalifolia D.C., show a mode of MS cleavage somewhat different from that of the dihydro bases (Section II,B,3) with principal scissions at a, b, c, and d. Diazomethane converted both 37 and 38 to 39 (27). MS data alone did not allow a choice between possible isomers, so X-ray work was done on methylwarifteine (38) (22) and dimethylwarifteine (39) (23). The structures of these bases, and therefore of warifteine (37), are as shown. Dimethylwarifteine is identical to O-methylcissampareine, isolated from Cissampelos pareira Linn (27). This family of alkaloids is unusual in having a benzyloxy bridge. [Pg.10]

Snedden W, Parker RB, Gorinsky C (1970) Electron-impact studies in medicine and biochemistry -II The mass spectra of the alkaloids from Cissampelos ovalifolia D.C. Org Mass Spectr 4 Suppl 607-614... [Pg.22]

See other pages where Cissampelos ovalifolia is mentioned: [Pg.18]    [Pg.18]    [Pg.32]    [Pg.55]    [Pg.86]    [Pg.256]    [Pg.257]    [Pg.173]    [Pg.174]    [Pg.13]    [Pg.14]    [Pg.68]    [Pg.115]    [Pg.18]    [Pg.18]    [Pg.32]    [Pg.55]    [Pg.86]    [Pg.256]    [Pg.257]    [Pg.173]    [Pg.174]    [Pg.13]    [Pg.14]    [Pg.68]    [Pg.115]    [Pg.295]    [Pg.296]    [Pg.19]   
See also in sourсe #XX -- [ Pg.19 , Pg.53 , Pg.96 ]



SEARCH



Cissampelos

© 2024 chempedia.info