Synlett p. 1127 - 1129 (2007)
Update date:2022-07-30
Topics:
Marrero, Joaquín González
San Andrés, Lucía
Luis, Javier Gutiérrez
The oxidation reaction of 11,12-di-O-methylcarnosol with ammonium cerium(IV) nitrate (CAN) gave an abietane diterpene with the C-ring opened and a diester function. The structure of this diester was established by spectroscopic analysis and by chemical means. The reaction of 11,12-di-O-dimethylgaldosol with CAN gave a similar result, yielding a δ-lactone which structure was established as 7-hydroxy-11,12-seco-8,13- abietadien-12,7:20,6β-dilacton-11-oic acid methyl ester by spectroscopic analysis and chemical means. These results could be useful to accede to other natural products like rosmic acid Georg Thieme Verlag Stuttgart.
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