Strychnos melinoniana

Total syntheses of racemic Melinonine E (316) and Strychnoxanthine (317) were performed using a radical cyclization process as the key step (98JOC968). Melinonine E was first isolated from the bark of Strychnos melinoniana in 1957 (57HCA1167), but structure elucidation was not carried... 

Narcotine has been reported as present in Papaver rhoeas L. 33) and P. paeoniflorum Hort. 34). Some other sources are doubtful its occurrence in Rauwolfia heterophylla Roehm and Schult. 35) may be due to industrial impurities 36), and, for the same reason, the isolation of narcotine from Strychnos melinoniana Baillon is questionable 37). 

Strychnoa malaccensis Benth. (see Strychnos gaultheriana Pierre ex C. B. Clarke) Strychnos melinoniana Baill. 

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