Volume 31, Issue 23
Heterocyclic Compounds
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ChemInform Abstract: Synthesis of 4-(p-Methoxyphenyl)-β-carboline, a New Inhibitor of Cellular Calcium Influx.

Carl A. Busacca

Carl A. Busacca

Dep. Chem. Dev., Boehringer Ingelheim Pharm. Inc., Ridgefield, CT 06877, USA

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Yong Dong

Yong Dong

Dep. Chem. Dev., Boehringer Ingelheim Pharm. Inc., Ridgefield, CT 06877, USA

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First published: 08 June 2010

Abstract

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ChemInform Abstract

The title compound (VII) is prepared in four steps from indole (I). The key step involves palladium-catalyzed dehydrogenation of the β-carboline dichlorophosphinic acid salt (VI). The salt (VI) invariably gives shorter reaction times compared to the free base. The success of the hydrogenation depends on the catalyst support.

chemical structure image

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