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Myricetin-3-O-β-d-glucuronide, a bioactive flavonol glycoside, was synthesized effectively starting from myricetrin in a total yield of 49.2%. The structures of all synthetic compounds were confirmed by 1H, 13C NMR, and HR-MS techniques. [ABSTRACT FROM AUTHOR]

The first synthesis of justicidinoside B and its atropisomer was reported and their absolute configurations were determined by the CD exciton chirality method. The structures were confirmed by1H NMR,13C NMR, and HRMS. [ABSTRACT FROM PUBLISHER]

The first total synthesis of 6′-hydroxyjusticidin A, isolated from Justicia procumbens L. with good inhibitory activity against cancer cells, has been accomplished. The structure was confirmed by 1H NMR, 13C NMR, and HR-ESI-MS. The key steps involved a Diels–Alder cycloaddition reaction and a reduction in NaBH4. [ABSTRACT FROM AUTHOR]