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  • Title: Roscotanes and roscoranes: Oxygenated abietane and pimarane diterpenoids from Kaempferia roscoeana.
    Author: Boonsombat J, Mahidol C, Chawengrum P, Reuk-Ngam N, Chimnoi N, Techasakul S, Ruchirawat S, Thongnest S.
    Journal: Phytochemistry; 2017 Nov; 143():36-44. PubMed ID: 28759790.
    Abstract:
    Eight previously undescribed ditepenoids, including four oxygenated abietanes (roscotanes A-D) and four oxygenated pimaranes (roscoranes A-D), along with twelve known diterpenoids were isolated from the whole plants of Kaempferia roscoeana. Their structures were elucidated by extensive spectroscopic analysis, and the structure of roscotane A was further confirmed by single crystal X-ray diffraction analysis. Most isolated compounds were evaluated for their antimicrobial and antimalarial activities.
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