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Palicourea alpina

In the /3-carboline series harman has been identified in, or isolated from, Prosopis nigra, Burkea africana, Pauridiantha lyallii, Passiflora coerulae, P. decais-neana, P. edulis, P. foetida, P. incamata, P. subpeltata, and P. warmingii, in Palicourea alpina (Sw.) DC. " and Ochrosia nakaiana Koidz. ... [Pg.192]

Countercurrent separation of the alkaloids of Palicourea alpina (Sw.) DC. (Rubiaceae) furnished palinine C27H32N2O10 mp 166.5-168° [a]D-252.3° (MeOH). The UV spectrum, Amax(log e) 236.5 (4.62), 290.5 (4.20), and 394 (3.61) nm, with a bathochromic shift in acid strongly supported the presence of / -carboline chromophore in the glycoalkaloid. Palinine on acetylation with pyridine and acetic anhydride gave the pentaacetate 77 which on purification with silica gel afforded the tetraacetate 76. The NMR spectrum of the latter showed close resemblance to deoxycordifoline... [Pg.559]

See other pages where Palicourea alpina is mentioned: [Pg.237]    [Pg.116]    [Pg.237]    [Pg.208]    [Pg.237]    [Pg.116]    [Pg.237]    [Pg.208]   
See also in sourсe #XX -- [ Pg.559 ]



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