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Pictet–Spengler reaction: is carbonyl the best choice? A highly diastereoselective alternative approach to trans-1,3-disubstituted tetrahydro-β-carbolines

✍ Scribed by Kamaljit Singh; Prasant K Deb


Book ID
104210457
Publisher
Elsevier Science
Year
2000
Tongue
French
Weight
152 KB
Volume
41
Category
Article
ISSN
0040-4039

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✦ Synopsis


Unprecedented 1,2,3-trisubstituted tetrahydro-b-carbolines (THBCs) have been synthesized via a short and highly diastereoselective synthetic route. The key step of the sequence is a ¯exible variant of the Pictet± Spengler reaction employing synthetic equivalents of several non-available carbonyl compounds. Using one such synthon, the resultant THBC could be further ring-closed to a tetracyclic indole alkaloidal skeleton.


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