b-D-Glucopyranoside,5-[[6-deoxy-2-O-[3-(4-hydroxyphenyl)-1-oxo-2-propenyl]-a-L-mannopyranosyl]oxy]-1,4a,5,7a-tetrahydro-7-(hydroxymethyl)cyclopenta[c]pyran-1-yl,[1S-[1a,4aa,5a(E),7aa]]-