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To explore potential compounds with marked effect on Alzheimer’s disease (AD) in Pithecellobium clypearia Benth., nineteen compounds (1–19) were obtained, including two new flavonoid derivatives, named pithecellobiumol A (1) and pithecellobiumol B (2) and 17 flavonoids (3–19). Their structures were elucidated based on 1D and 2D-NMR spectra as well as HR-ESI-MS data. The absolute configurations of...
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