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Further diterpenoids from Plectranthus ornatus and P. grandidentatus
Authors:Patricia Rijo,Cristina Gaspar-Marques,Marí  a F. Simõ  es,Marí  a L. Jimeno,Benjamí  n Rodrí  guez
Affiliation:1. Faculdade de Farmácia, Universidade de Lisboa, CECF, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal;2. Centro de Química Orgánica “Manuel Lora-Tamayo”, CSIC, Juan de la Cierva 3, E-28006 Madrid, Spain;3. Instituto de Química Orgánica, CSIC, Juan de la Cierva 3, E-28006 Madrid, Spain
Abstract:
A new halimane diterpenoid and the previously known labdane rhinocerotinoic acid were isolated from Plectranthus ornatus Codd. In addition, a new monoacetyl derivative of the abietane coleon U was found among the constituents of Plectranthus grandidentatus Gürke. These diterpenes could be significant from both chemotaxonomic and biogenetic points of view.
Keywords:Plectranthus ornatus   Plectranthus grandidentatus   Lamiaceae   Diterpenes   Halimane   Labdane   Abietane
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