The 3-O- β-D-galactopyranosyl-20-O- β-D-glucopyranoside and 3-O- β-D-glucopyranosyl-20-O- β-Dgalactopyranoside of 3 β,20S-dihydroxydammar-24-en-12-one, which are structural analogs of chikusetsusaponin-LT ( 1), a minor glycoside from Panax japonicus, were synthesized for the first time.