2007The Journal of Organic ChemistryRequires access

New Access to Indolizidine and Pyrrolizidine Alkaloids from an Enantiopure Proline: Total Syntheses of (−)-Lentiginosine and (1R,2R,7aR)-Dihydroxypyrrolizidine

Steven R. Angle, David Bensa, Dominique S. Belanger

Open publisher page 39 citations

Abstract

A new approach to the synthesis of indolizidine and pyrrolizidine skeletons is reported. (-)-Lentiginosine and (1R,2R,7aR)-dihydroxypyrrolizidine have both been synthesized in 13 steps from di-O-isopropylidene-d-mannitol. The common key intermediate is (-)-dihydroxyproline benzyl ester 10.

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A new approach to the synthesis of indolizidine and pyrrolizidine skeletons is reported. (-)-Lentiginosine and (1R,2R,7aR)-dihydroxypyrrolizidine have both been synthesized in 13 steps from di-O-isopropylidene-d-mannitol. The common key intermediate is (-)-dihydroxyproline benzyl ester 10.

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Available abstract

A new approach to the synthesis of indolizidine and pyrrolizidine skeletons is reported. (-)-Lentiginosine and (1R,2R,7aR)-dihydroxypyrrolizidine have both been synthesized in 13 steps from di-O-isopropylidene-d-mannitol. The common key intermediate is (-)-dihydroxyproline benzyl ester 10.

Key concepts: Enantiopure drug, Pyrrolizidine, Chemistry, Indolizidine, Stereochemistry, Swainsonine, Proline, Total synthesis

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New Access to Indolizidine and Pyrrolizidine Alkaloids from an Enantiopure Proline: Total Syntheses of (−)-Lentiginosine and (1R,2R,7aR)-Dihydroxypyrrolizidine — Research Paper | ScholarLens