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Published on: May 12, 2023
Six new sesquiterpenes from Cacalia ainsliaeflora
Man-Jun Mao1, Biao Jiang, Zhong-Jian Jia
1Department of Chemistry, Tongji University, 1239 Siping Road, Shanghai 200092, PR China. maomanj@yahoo.com.cn
Abstract:
Five new eremophilane sesquiterpenes, 3beta,6beta-diangeloyloxy-8beta,10beta-dihydroxyeremophilenolide (1); 6beta-acetoxy-3beta-angeloyloxy-8beta,10beta-dihydroxyeremophilenolide (2); 3beta-angeloyloxy-6beta-methoxyeremophil-7(11),9(10)-dien-8alpha,12-olide (3), 3beta-angeloyloxy-8-oxo-eremophil-6(7)-en-12-oic acid (4); 3beta-angeloyloxy-10beta-hydroxy-8-oxo-eremophil-6(7)-en-12-oic acid (5), and a novel nor-eremophilane derivative, 3beta-angeloyloxy-10beta-hydroxy-8-oxo-eremophil-6(7)-en (6), were isolated from the roots of Cacalia ainsliaeflora. Their structures were elucidated by spectroscopic methods, including 2DNMR. Compounds 1 and 2 were assayed against P388 and A549 Carcinoma cell lines. No positive activities were observed.
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