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Pseudocinchona africana

Corynantheidine, C22H28O3N2. This isomeride of corynantheine was found by Janot and Goutarel (1944) in the residual, benzene-soluble alkaloids of Pseudocinchona africana. It was isolated as the picrate, m.p. 252°, — 152° (acetone). The base, B. COMe2, had m.p. 117°,... [Pg.504]

Yohimbine is a major carboline alkaloid in the bark of Pausinystalia species, such as Pausinystalia yohimbe (Corynanthe yohimbe), Pausinystalia macrocerus, Pausinystalia paniculata, and Pausinystalia trillesi. It is also found in Pseudocinchona africana and Rauwolfia canescens. [Pg.3704]

The situation in the alio series of ring E seco alkaloids is exemplified hy corynoxine and corynoxine B. Corynoxine, a constituent of Pseudocinchona africana A. Chev. (13a), belongs to the alio or epiallo series since it can also be prepared from corynantheidine (11a). The configura-... [Pg.130]

Pseudocinchona africana A. Chev. Pseudocinchona mayumbensis R-Hamet Pogonopus tubulosus (DC.) Schum. [Pg.31]

See other pages where Pseudocinchona africana is mentioned: [Pg.500]    [Pg.504]    [Pg.504]    [Pg.799]    [Pg.812]    [Pg.696]    [Pg.464]    [Pg.107]    [Pg.5]    [Pg.264]    [Pg.500]    [Pg.504]    [Pg.504]    [Pg.799]    [Pg.812]    [Pg.696]    [Pg.464]    [Pg.107]    [Pg.5]    [Pg.264]    [Pg.503]    [Pg.185]    [Pg.262]   
See also in sourсe #XX -- [ Pg.696 , Pg.720 ]

See also in sourсe #XX -- [ Pg.107 ]

See also in sourсe #XX -- [ Pg.31 ]

See also in sourсe #XX -- [ Pg.500 , Pg.503 , Pg.504 ]



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