Two new 3-hexenol glycosides from the calyces of Physalis alkekengi var. franchetii

Two new hexenol glycosides, (Z)-hex-3-en-1-ol O-beta-d-xylcopyranosyl-(1-6)-beta -d-glucopyranosyl-(1-2)-beta-d-glucopyranoside (1) and (E)-hex-3-en-1-ol O-beta-d-xylcopyranosyl-(1-6)-beta-d-glucopyranosyl-(1-2)-beta-d-glucopyranoside (2), were isolated from the 50% ethanol elution of macroporous resin of Physalis alkekengi var. franchetii. Their structures were established by detailed spectroscopic analysis, including extensive 2D-NMR data. This is the first time to report the (Z) and (E) 3-hexenol glycosides from Physalis alkekengi var. franchetii. [GRAPHICS] .

Automated summary

Two new hexenol glycosides were isolated from the fruit of Physalis alkekengi var. franchetii, and their structures were determined through detailed spectroscopic analysis. This is the first report of (Z) and (E) 3-hexenol glycosides from this plant species.