Two New Phloroglucinol Derivatives from Syzygium austroyunnanense
摘要
Our continuous phytochemical investigation of the twigs and leaves of Syzygium austroyunnanense has led to the isolation of two new phloroglucinol derivatives, austroyunone F (1) and austroyunone G (2). Their structures were determined via extensive spectroscopic data including NMR along with HR-ESI-MS. Compound 1 showed significant inhibitory activity with an IC50 value of 2.64 μM against α-glucosidase.