The Absolute Configuration at C24 of the Ecdysteroids Dacrysterone, Pterosterone and Ponasterone C
- 1 January 1979
- journal article
- research article
- Published by CSIRO Publishing in Australian Journal of Chemistry
- Vol. 32 (4) , 779-782
- https://doi.org/10.1071/ch9790779
Abstract
The shielding values in 13C N.M.R. spectra of the ecdysteroids dacrysterone, pterosterone, and ponasterone C have been assigned, together with those for the 20,22- and 22,24-benzylidene acetal derivatives of the latter. From the N.M.R. data the C24 configuration of dacrysterone is assigned as 24R, while the 24s configuration is assigned to pterosterone and ponasterone C.Keywords
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