Selective cholinesterase inhibitory activities of a new monoterpene diglycoside and other constituents from Nelumbo nucifera stamens.


A new beta-cyclogeraniol diglycoside (5), along with four known components, cycloartenol (1), p-hydroxybenzoic acid (2), vanilloloside (3), and 5'-O-methyladenosine (4), were first isolated from the n-BuOH fraction of Nelumbo nucifera stamens. The chemical structure of 5 was elucidated as 1-hydroxymethyl-2,6,6-trimethyl-1-cyclohexene 9-O-beta-D… (More)


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