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A short synthesis of the hexahydropyrido[4,3-b]carbazole core structure for the synthesis of aspidosperma alkaloids

✍ Scribed by Yavuz Ergun

Publisher
Journal of Heterocyclic Chemistry
Year
2007
Tongue
English
Weight
179 KB
Volume
44
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

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A short synthesis of the hexahydropyrido[4,3‐b]carbazole derivative 8 which is important for the preparation of aspidosperma alkaloids was described. Construction of the tetracyclic structure was achieved via a short synthetic route and some new carbazolone derivatives (4, 5, 6 and 7) were synthesized.

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## Abstract The synthesis of compound **12** which has a hexahydro‐1,5‐methanoazocino[4,3‐__b__]indole structure for the synthesis of pentacyclic strychnos type alkaloids (tubifolin and tubifolidine) is described. Many new compounds **5–12** have also been synthesized.