2H-Pyran-4-aceticacid, 3-ethylidene-2-(b-D-glucopyranosyloxy)-3,4-dihydro-5-(methoxycarbonyl)-,[3-[[[3-ethylidene-2-(b-D-glucopyranosyloxy)-3,4-dihydro-5-(methoxycarbonyl)-2H-pyran-4-yl]acetyl]oxy]-5-[2-[[[3-ethylidene-2-(b-D-glucopyranosyloxy)-3,4-dihydro-5-(methoxycarbonyl)-2H-pyran-4-yl]acetyl]oxy]-1-(hydroxymethyl)ethyl]-2-methylcyclopentyl]methylester, [1S-[1a(2R*,3E,4R*),2b,3a(2R*,3E,4R*),5b[R*(2R*,3E,4R*)]]]-; Sambacoside A