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Macrocarpamin, ein neues Bisindolalkaloid aus Alstonia macrophylla WALL. 167. Mittelung über organische Naturstoffe

✍ Scribed by Friedrich Mayerl; Manfred Hesse


Publisher
John Wiley and Sons
Year
1978
Tongue
German
Weight
791 KB
Volume
61
Category
Article
ISSN
0018-019X

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✦ Synopsis


Macrocarpamine, a new bisindole alkaloid from Alstonia macrophylla WALL.

A new bisindole alkaloid give the name (−)‐macrocarpamine (3) was isolated from the bark of Alstonia macrophylla WALL. Under pyrolytic conditions 3 is cleaved into the two known bases (+)‐pleiocarpamine (2) and (−)‐anhydro macrosalhin‐methin (5) (Scheme 1). The structure of 3 (including relative configuration) was deduced on the basis of chemical evidence and from its UV.‐, IR.‐, NMR.‐ and mass spectroscopic data.