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In this paper we report on the development of a flexible and efficient synthetic approach towards 6,7-didehydrocarnosoic acid type analogues. The elaboration of the required trans-decalin system, the installation of the carboxylic acid in the angular position as well as the generation of the C 6 -C 7 double bond to afford the 6,7-didehydrocarnosoic acid scaffold as it was found in...
This paper describes the racemic and stereoselective synthetic route for a novel 6'(α)-hydroxy-carbovir from a simple acyclic precursor, Solketal. The relative stereochemistry of the target nucleosides was successfully controlled by a sequential stereoselective glycolate Claisen rearrangement followed by a ring-closing metathesis (RCM). Adenine and cytosine were coupled using a Pd(0) catalyzed allylic...
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