21018-85-9

(4aS)-6α-[2-O-(3,3,5-Triacetoxy-1,1-biphenyl-2-ylcarbonyl)-3-O,4-O,6-O-triacetyl-β-D-glucopyranosyloxy]-5β-vinyl-4,4aα,5,6-tetrahydro-1H,3H-pyrano[3,4-c]pyran-1-one