Abstract
Gardenia plants have long been used as traditional medicines in various countries including Thailand. In this study, two new 3,4-seco-cycloartane triterpenes, sootependial (1) and sootepenoic acid (2), were isolated from bud exudate of G. sootepensis, together with five known compounds. Their structures were elucidated on the basis of spectroscopic data. Sootependial (1) showed potent cytotoxicity selective to Hep-G2 cell lines and anti-angiogenic activity in ex vivo model (a rat aortic ring sprouting) assay. Furthermore, its angiogenic effect was found to occur mainly by suppressing endothelial cell proliferation and tubule formation, suggesting the potential of 1 as a lead compound for cancer treatment.
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