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One new phenylglycoside, 1-hydroxy-3,4,5-trimethoxyphenyl-1-O-[6′-O-(4″-carboxy-1″ ,3″ ,5″ - trihydroxy)phenyl]-β-D-glucopyranoside ( 1), along with eight known ones, isosalicin ( 2), vanilloloside ( 3), (4-hydroxy-3,5-dimethoxyphenyl)methyl-β-D-glucopyranoside ( 4), crenatin ( 5), hydrageifolin I ( 6), tachioside ( 7), isotachioside ( 8), and koaburside ( 9), were isolated from the stems of Spiraea prunifolia var. simpliciflora. The chemical structures of these compounds were identified on the basis of spectroscopic data such as NMR, FAB-MS, and IR. All these compounds were isolated from this plant for the first time. [ABSTRACT FROM AUTHOR]

A new hydroxy fatty acid, named bombyxmoric acid methyl ester ( 1), along with three known ones, 12(S)-methyl 12-hydroxyoctadeca-9Z,13E,15Z-trienoate ( 2), 13(S)-methyl 13-hydroxyoctadeca-9Z, 11E-dienoate ( 3), and 13(S)-hydroxyoctadeca-9Z,11E-dienoic acid ( 4), were isolated from Bombyx mori droppings. The structure of compound 1 was established as methyl 7-hydroxyoctadeca-8E,10Z,15E-trienote on the basis of spectroscopic methods including HR-EI/MS, IR, 1D, and 2D NMR experiments. [ABSTRACT FROM AUTHOR]