The surface exudate of the aerial parts of S. adenophora [1], that showed germination total inhibition [2] against Papaver rhoeas L. and Avena sativa L. at 5mg/L in Petri dish experiments, subjected to column chromatography on Sephadex LH-20 and silica gel and to HPLC-MS and MS2 experiments followed by semi-preparative RP-HPLC, yielded two new clerodane diterpenoids (1 and 2), identified by IR and NMR analysis, including TOCSY, COSY, HSQC, HMBC and ROESY experiments, ESI-TRAP-MS and HR-MS analysis. References: 1. Epling, C. (1940) A Revision of Salvia, subgenus Calosphace. In: Repertorium Specierum Novarum Regni Vegetabilis. Vol. 110. Fedde F., University of California Press: Berkley, California. 2. Chiapusio. G., Sanchez A.M., Reigosa M.J., Gonzalez L., Pellissier F. (1997), Journal of Chemical Ecology, 23, 2445-2453.
New clerodane diterpenoids from Salvia adenophora Fernald (Lamiaceae).
BISIO, ANGELA;DAMONTE, GIANLUCA;GIACOMELLI, EMANUELA;SALIS, ANNALISA;RUSSO, ELEONORA;CAFAGGI, SERGIO;ROMUSSI, GIOVANNI;
2010-01-01
Abstract
The surface exudate of the aerial parts of S. adenophora [1], that showed germination total inhibition [2] against Papaver rhoeas L. and Avena sativa L. at 5mg/L in Petri dish experiments, subjected to column chromatography on Sephadex LH-20 and silica gel and to HPLC-MS and MS2 experiments followed by semi-preparative RP-HPLC, yielded two new clerodane diterpenoids (1 and 2), identified by IR and NMR analysis, including TOCSY, COSY, HSQC, HMBC and ROESY experiments, ESI-TRAP-MS and HR-MS analysis. References: 1. Epling, C. (1940) A Revision of Salvia, subgenus Calosphace. In: Repertorium Specierum Novarum Regni Vegetabilis. Vol. 110. Fedde F., University of California Press: Berkley, California. 2. Chiapusio. G., Sanchez A.M., Reigosa M.J., Gonzalez L., Pellissier F. (1997), Journal of Chemical Ecology, 23, 2445-2453.
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