(-)-Filicinoside A 156857-59-9 3-O-beta-D-Glucopyranosyl-26-O-beta-D-glucopyranosyl-22-alpha-methoxy-5beta-furostan-3beta,26-diol Filicinoside A beta-D-Glucopyranoside, (3beta,5beta,22alpha,25S)-22-methoxyfurostan-3,26-diyl bis-