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Synthesis 2003(14): 2236-2240
DOI: 10.1055/s-2003-42086
DOI: 10.1055/s-2003-42086
PAPER
© Georg Thieme Verlag Stuttgart · New York
Application of Polystyrene Bound Ethoxymethyl (PEOM) Chloride in the Solid-Phase Synthesis of Substituted 1-Methyl-1H-Indoles
Further Information
Received
25 June 2003
Publication Date:
24 September 2003 (online)
Publication History
Publication Date:
24 September 2003 (online)
Abstract
A novel linker for the solid-phase synthesis of substituted 1-methylindoles has been developed. The linker is stable under strong basic conditions and compatible with a broad range of chemical transformations as demonstrated by electrophilic and nucleophilic substitution reactions in the 2-position of the indole nucleus. Indoles are cleaved under reductive conditions by use of alane resulting in 1-methylindole derivatives. Sensitive functional groups in the indole moiety such as aldehydes, ketones, esters, imines, and amides are reduced simultaneously.
Key words
combinatorial chemistry - solid phase synthesis - derivatisation of indoles - nucleophilic aromatic substitution - reductive cleavage
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