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Abstract
Two new aromatic glycosides were isolated from Eulophia andamanensis . • Two new aromatic glycosides were isolated from Eulophia andamanensis . • The secondary metabolites of Eulophia andamanensis were reported for the first time. • Glucosyloxybenzyl deivatives were related to isolated compounds from the same subfamily. Two new phenolic glycosides, eulophiosides A and B ( 3 , 4 ), were isolated from Eulophia andamanensis in addition to six known compounds. The known compounds were identified as gastrodin ( 1 ), vitexnegheteroin A ( 2 ), grammatophylloside A ( 5 ), grammatophylloside B ( 6 ), pleionoside E ( 7 ), and pleionoside F ( 8 ). Their structures were determined based on the physical data and the spectroscopic evidence including 1D and 2D NMR experiments.
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