Three new ferulic acid esters of glucosylglucose, 1-O-(E)-feruloyl-β-d-glucopyranosyl (1-2)-[β- d-glucopyranosyl (1-6)]-β-d-glucopyranose (allimacronoid A, 1), 1-O-(E)-feruloyl-{β-d-glucopyranosyl (1-4)-[β-d-glucopyranosyl (1-2)]}-[β- d-glucopyranosyl (1-6)]-β-d-glucopyranose (allimacronoid B, 2),
Two new ferulic acid esters of oligo-glucose, 1-Ο-(E)-feruloyl-β--D-gentiobioside (1) and 1-Ο-(E)feruloyl-{β-D-glucopyranosy (1->6)-[β-D-glucopyranosyl (I--2)]}-β-D-glucopyranoside.(allimacronoid D, 2) were isolated together with 1-Ο-(E)-feruloyl-β-D-glucopyranoside (3) and trans-ferulic acid (4)