The Chemistry of Eremophila Spp. XXV. New Cembrene Derivatives From E. dempsteri, E. platycalyx and E. fraseri
EL Ghisalberti, PR Jefferies and TA Mori
Australian Journal of Chemistry
39(10) 1703 - 1710
Published: 1986
Abstract
The isolation and structural elucidation of three new cembrene diterpenes from Eremophila species is reported. (1R,3Z,7E,11Z)-15- Hydroxycembra-3,7,11-trien-19-oic acid (3) and (1R,3Z,8ξ,11Z)-15- hydroxycembra-3,11-dien-19-oic acid (4) were isolated from E. dempsteri and (1R,3S,4R,7E,11Z)-3,15-epoxy-19-oxocembra-7,11-dien-18-ol as the malonate half ester derivative (15) was isolated from E. Platycalyx and a variety of E. Fraseri. In addition the preparation of (1R,3Z,7Z,11Z)- cembra-3,7,11,15-tetraene (13; all- cis-cembrene-A ) is reported.
https://doi.org/10.1071/CH9861703
© CSIRO 1986
