Rauwolfia cumminsii

In the yohimbine group, reserpine Nfoxide has been found in the aerial parts of Melodinus balansae Baillon var. paucivenosus (S. Moore) Boiteau, and yohimbine, 18-hydroxy-yohimbine, reserpine, and rescinnamine in the stem bark of Rauwolfia cumminsii. Other extractions have resulted in the isolation of yohimbine, methyl reserpate, and (possibly) 18-hydroxy-yohimbine from the stem bark of R. vomitoria. ... 

Peraksine, norpurpeline (149), dihydronorpurpeline, endolobine (150), purpeline, seredamine, nortetraphyllicine, normacusine B, and desacetyl-picraline have been found in the stem bark of Rauwolfia cumminsii j two minor bases were tentatively identified as O-methylnormacusine B (17-methoxysar-pagan) and its Nb-oxide, and a third, as yet unidentified, is probably also a sarpagan derivative. Sarpagine, normacusine B, purpeline, norpurpeline, norseredamine, nortetraphyllicine, and 10-hydroxynortetraphyllicine occur in R. vomitoria stems an unknown base was provisionally formulated as (151), but the stability of the 7,17-bond in such a structure is very much in doubt. 

Sarpagine-Ajmaline-Picraline-Vobasine Group. The stem bark of Rauwolfia cumminsii Stapf. contains mitoridine and two new alkaloids, Na-demethyl-... 

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