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Synthesis of an 11-unsubstituted analogue of (±)-huperzine A

Camps, Pelayo, Contreras, Joan, Morral-Cardoner, Jordi, Muñoz-Torrero, Diego, Font-Bardia, Mercè and Solans, Xavier (1999) Synthesis of an 11-unsubstituted analogue of (±)-huperzine A. Tetrahedron, 55 (28). pp. 8481-8496. ISSN 0040-4020

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The synthesis of a new analogue of (±)-huperzine A lacking the ethylidene appendage at position 11 has been accomplished. The key steps of the synthesis were: a) the reduction of the keto function of the known methyl 7,7-ethylenedioxy-3-methyl-9-oxobicyclo[3.3.1]non-3-ene-1-carboxylate into a methylene group by reduction to a mixture of stereoisomeric alcohols follwed by alcohol-deoxygenation through a Barton-McCombie proccdure and b) the elaboration of the pyridone ring in a late stage of the synthesis by reaction of a pyrrolidine enamine with propiolamide, which gave a mixture of regioisomeric pyridone derivatives.

Item Type: Article
Subjects: Q Science > Q Science (General)
Q Science > QD Chemistry
Schools: School of Applied Sciences
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Depositing User: Sara Taylor
Date Deposited: 28 Jun 2011 14:52
Last Modified: 28 Aug 2021 11:08


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