The structure of an alkaloid, picrinine, from Alstonia scholaris
✍ Scribed by Ghosh, R. ;Roychowdhury, P. ;Chattopadhyay, D. ;Iitaka, Y.
- Book ID
- 114505804
- Publisher
- International Union of Crystallography
- Year
- 1988
- Tongue
- English
- Weight
- 436 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0108-2701
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## Abstract Three new akuamillan‐type indole alkaloids, __i.e.__, 5‐methoxystrictamine (=methyl (5__β__,16__R__,19__E__)‐5‐methoxyakuammilan‐17‐oate; **1**), methyl (16__R__,19__E__)‐1,2‐dihydro‐16‐(hydroxymethyl)‐5‐oxoakuammilan‐17‐oate (**2**), and methyl (2__β__,16__R__,19__E__)‐4,5‐didehydro‐1,
## Abstract Four new 11‐noriridoids named scholareins A–D (**1**–**4**), along with three known derivatives, isoboonein (**5**), alyxialactone (**6**), and loganin (**7**), were isolated from EtOH extracts of the bark of __Alstonia scholaris__ by chromatographic methods. Their structures were ident