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Total Synthesis of the Galbulimima Alkaloid (±)-GB 13

McLachlan, Matthew; O'Connor, Patrick; Fairweather, Kelly Ann; Willis, Anthony; Mander, Lewis


The synthesis of alkaloid GB 13 (4), isolated from the North Australian rain forest tree Galbulimima belgraveana is described. Birch reductive alkylation of 2,5-dimethoxybenzoic acid by 3-methoxybenzyl bromide, followed by an acidcatalyzed cyclization was used to synthesize the [3.3.1]bicyclononane 12. Ring contraction performed on the diazoketone 19 followed by a Diels-Alder reaction generated a pentacyclic intermediate 34 with a carbon skeleton closely resembling the target alkaloid. The...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
Source: Australian Journal of Chemistry
DOI: 10.1071/CH10056


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