Further 2R-Benzylmalate derivatives from the undergrounds parts of Arundina graminifolia (Orchidaceae)

[Display omitted] •Nine new glucosyloxybenzyl 2R-benzylmalate derivatives were isolated from A. graminifolia.•Structures were elucidated by MS, 1D and 2D NMR spectrometry analyses.•Arundinoside R and S are the first isolation of monodesmosidic derivatives from A. graminifolia. Nine new glucosyloxybenzyl 2R-benzylmalate derivatives, named arundinosides R–Z (1-9) were isolated from the underground parts of Arundina graminifolia. The structures of the new compounds were elucidated by in-depth spectroscopic data analysis including 1D and 2D NMR experiments, in combination with mass spectrometry data.