STUDIES ON THE CHEMICAL CONSTITUENTS OF PAEONIA LACTIFLORA PALL.

Two new monoterpene glycosides were isolated from the ethanolic extract of the root of Paeonia laetiflora Pall. The structure of compound (Ⅰ) has been identified as (Z)-(1S, 5R)-β-pinen-10-yl β-vicianoside; Compound (Ⅱ) is named lactiflorin and tentatively assigned as (Ⅱ).Compound (Ⅰ) is the glycoside of the enol form of an aldehyde. In compound (Ⅱ), the sugar moiety is attached to the aglycone by two ether-like linkages. Both seem to be unprecedented.