During our continual investigations on (Willd.) Roxb., two new iridoid glucosides, diffusosides C (1) and D (2), were isolated and their structures were elucidated through cumulative analysis of NMR and HRESIMS spectroscopic data as well as computational studies. Both isolated compounds displayed no obvious neuroprotective activity on HO-induced injury PC12 cells at 50 M .
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