Rospiglioside, a New Totarane Diterpene from the Leaves of Retrophyllum rospigliosii
Keywords:
Retrophyllum rospigliosii, podocarpaceae, diterpenes, abietane, totaraneAbstract
Abstract. A new glucosyl totarane diterpene named rospiglioside, together with seven known abietane and totarane diterpenes identified as ferruginol, sugiol, sugiol acetate, totarol, totarol acetate, 4β-carboxy-19-nortotarol and 16-hydroxy-4β-carboxy-19-nortotarol have been isolated from the leaves of Retrophyllum rospigliosii (Pilger) C. N. Page (Podocarpaceae). The structure of rospiglioside was established on the basis of spectroscopic methods, mainly 1D- and 2DNMR experiments.
Resumen. De las hojas del Retrophyllum rospigliosii (Pilger) C. N. Page (Podocarpaceae) fue aislado un nuevo glucosil diterpeno de la serie del totarano denominado rospigliósido, y siete diterpenos conocidos de las series del abietano y del totarano identificados como ferruginol, sugiol, acetato de sugiol, totarol, acetato de totarol, 4β-carboxi-19-nortotarol y 16-hidroxi-4β-carboxi-19-nortotarol. La estructura del rospigliósido fue establecida sobre la base de métodos espectroscópicos, principalmente experimentos de RMN uni- y bidimensionales
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