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The first asymmetric synthesis of the marine alkaloid (-)-(S)-nakinadine C is described. This synthesis employs the conjugate addition of lithium dibenzylamide to an N-α-phenylacryloyl SuperQuat derivative followed by diastereoselective protonation of the intermediate enolate using 2-pyridone as the key step to introduce the stereochemistry. (-)-(S)-Nakinadine C was isolated in 13% yield over 9 steps from commercially available atropic acid, 98:2 dr [(Z):(E) ratio] and >99% ee. © 2013 Elsevier Ltd. All rights reserved.

Original publication

DOI

10.1016/j.tetlet.2013.09.043

Type

Journal article

Journal

Tetrahedron Letters

Publication Date

27/11/2013

Volume

54

Pages

6423 - 6426