Journal
REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY
Volume 27, Issue 6, Pages 698-701Publisher
SOC BRASILEIRA FARMACOGNOSIA
DOI: 10.1016/j.bjp.2017.05.015
Keywords
Plectranthus cylindraceus; Lamiaceae; Plectraterpene; Ursane-type triterpene
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Funding
- 'Research Center of the Female Scientific and Medical Colleges', Deanship of Scientific Research, King Saud University
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A new ursane-type triterpene ester, plectraterpene [3 beta-(decanoyloxy)-19-hydroxy-urs-12-ene] and four known steroidal compounds have been isolated from the aerial parts of Plectranthus montanus Benth. (syn. Plectranthus cylindraceus Hochst. ex Benth.), Lamiaceae. The known compounds were stigmasterol, sitosteryl ferulate, cholest-5-en-3-O-beta-d-glucopyranoside and stigmasterol-3-O-beta-d-glucopyranoside. Compounds plectraterpene, sitosteryl ferulate and stigmasterol-3-O-beta-d-glucopyranoside are reported for the first time from this plant whereas compound cholest-5-en-3-O-beta-d-glucopyranoside first time from the genus. The structures of these compounds were determined through spectral analysis, including extensive 2D NMR data as well as chemical methods and comparison with literature. (c) 2017 Sociedade Brasileira de Farmacognosia. Published by Elsevier Editora Ltda.
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