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Three new phenolic glycosides (1–3) together with nine known ones were isolated from the roots of Tecoma mollis using DPPH radical scavenging bioassay-guided chromatographic separation. The structures of the new compounds were established using extensive spectroscopic data and HR-MS. The antioxidant, COX-2 inhibition, and cytotoxic activities were evaluated for the isolated compounds. Compound 4 displayed...
Quantum mechanics (QM)-based calculations for elucidating full structures of natural compounds are growing in importance and reliability. Two new phenolic glycosides (1 and 2) and 11 known compounds were isolated from the twigs of Spiraea prunifolia var. simpliciflora. The chemical structures of the new compounds (1 and 2) were initially established through different NMR techniques (1H and 13C NMR,...
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