Studies on Galeola septentrionalis REICHB. fil. I. Isolation and Structures of the Constituents of "Dotuusoo"

Nine kinds of constituents, named Sub I, II, III, IV, V, VI, VII, VIII and IX were isolated from MeOH extractives of"Dotuusoo, "Galeolae fructus, Orchidaceae. Three new compounds, Sub IV, V and VI were characterized as 1-[4-(β-D-glucopyranosyloxy) benzyl] (S)-(-)-2-isopropylmalic acid metallic salt, bis [4-[β-D-glucopyranosyloxy) benzyl] (S)-(-)-2-isopropylmalate and 4-methyl ester of Sub IV respectively, together with three known compounds p-hydroxybenzyl methyl ether (Sub I), 4-(β-D-glucopyranosyloxy)-benzyl alcohol (Sub II) and (S)-(-)-2-isopropylmalic acid metallic salt (Sub III).