l)-0-O-β-D-glucopyranosyl caffeic acid (0), trans-0-O-(0-O-trans-p-coumaroyl-β-D-glucopyranosyl)-0-O-β-D-glucopyranosyl caffeic acid (0), trans-0-O-(0-O-trans-caffeoyl-β-D-glucopyranosyl)-0-O-β-D-glucopyranosyl 