(1aR,1bS,2S,5aR,6S,6aS)-6-Hydroxy-1a-(hydroxymethyl)-1a,1b,2,5a,6,6a-hexahydrooxireno[4,5]cyclopenta[1,2-c]pyran-2-yl 6-O-[(2E)-3-(4-hydroxy-3-methoxyphenyl)-2-propenoyl]-b-D-glucopyranoside