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     The proposed structures for prionitiside A (1) and prionitiside B (2) need be revised as isoquercitrin and rutin, respectively, on the basis of the original reported NMR data.

Reference:

[1] Li-Min Zhao, Xiao-Tian Liang, Lian-Niang Li. Prionitisides A and B, two phenolic glycosides from Salvia prionitis. Phytochemistry, 1996, 42(3): 899-901.