Constituents of Conospermum brachyphyllum . Improved Methods for the Isolation and Synthesis of (+)-Conocurvone and the Structure of (+)-Brachyphyllone
James A. Armstrong, Robert W. Baker, Wayne M. Best, Lindsay T. Byrne, Jack R. Cannon, Steven M. Colegate, Anthony R. Gray, Neville G. Marchant, Neil Rothnie, Melvyn V. Sargent, Colette G. Sims, Zdzislaw E. Spadek and Robert D. Trengove
Australian Journal of Chemistry
52(1) 57 - 62
Published: 1999
Abstract
Improved methods have been devised for the isolation of (+)-conocurvone (1) from the roots of Conospermum brachyphyllum Lindl. and for its synthesis. The isolation of (R)-(+)-9-hydroxy-3-(4′-hydroxy-4′-methylpentan-1′-yl)-3,8-dimethyl-3H-naphtho[2,1-b]pyran-7,10-dione [(+)-brachyphyllone] (2), a minor constituent of this species, its structural elucidation and partial synthesis are also described. 8-C-Methylteretifolione-B (9) and 8-C-methyl-9-O-methylteretifolione-B (10), as well as the previously isolated (+)-teretifolione-B (8), also occur in this plant.https://doi.org/10.1071/C98143
© CSIRO 1999
