Taylor and Francis Group, Natural Product Research, 14(31), p. 1687-1692, 2017
DOI: 10.1080/14786419.2017.1295236
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One new norsesquiterpene polyalone A ( 1 ), and one new natural product 9-keto-cyclocolorenone ( 2 ), along with three known analogues ( 3–5 ) were isolated from the roots of Polyalthia laui . Their structures were elucidated by the detailed analysis of comprehensive spectroscopic data. All compounds were evaluated for their cytotoxic activities and antibacterial activities.