A New Abietane Diterpenoid from Plectranthus bishopianus Benth. |
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| Authors: | Kodakandla Venkata Syamasundar Guvvala Vinodh Kalavagunta Venkata Naga Satya Srinivas Bogineni Srinivasulu |
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| Institution: | 1. CSIR‐Central Institute of Medicinal and Aromatic Plants, (Council of Scientific and Industrial Research), Research Centre, G.K.V.K. Post, Bangalore – 560?065, India, (fax: +914027202602);2. Present address: CSIR‐Central Institute of Medicinal and Aromatic Plants, Research Centre, Boduppal, Hyderabad – 500 092, India. |
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| Abstract: | Chemical examination of the MeOH extract of Plectranthus bishopianus Benth ., a rare and endangered plant, resulted in isolation of a new abietane diterpene, 6β‐hydroxy‐7α‐methoxyroyleanone ( 1 ), along with two more diterpenoids, 6,7‐dehydroroyleanone, and 6β,7α‐dihydroxyroyleanone, a triterpene oleanolic acid, and two sterols, β‐sistosterol and stigmasterol. The structures of the isolated compounds were elucidated on the basis of spectroscopic data and also by comparison with authentic samples. |
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| Keywords: | Plectranthus bishopianus Abietane Diterpenoids Royleanone 6β ‐hydroxy‐7α ‐methoxy‐ |
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