[EN] COMPOSITION FOR INHIBITING TNF-α OR IL-6 PRODUCTION<br/>[FR] COMPOSITION PERMETTANT D'INHIBER LA PRODUCTION DE TNF-α OU D'IL-6<br/>[JA] TNF-α又はIL-6産生抑制用組成物
[EN] COMPOSITION FOR LOWERING BLOOD GLUCOSE LEVEL, REDUCING BLOOD HEMOGLOBIN A1c CONTENT, OR INCREASING BLOOD HDL-CHOLESTEROL CONTENT<br/>[FR] COMPOSITION VISANT À ABAISSER LE TAUX DE GLYCÉMIE, RÉDUIRE LA CONCENTRATION SANGUINE D'HÉMOGLOBINE A1c OU AUGMENTER LA CONCENTRATION SANGUINE DE CHOLESTÉROL HDL<br/>[JA] 血中グルコース濃度低減用、血中ヘモグロビンA1c量低減用又は血中HDL-コレステロール量増加用組成物
Four bisabolane sesquiterpenoids, named bisacurone epoxide ((1))___∼, bisacurone A ((2))___∼) bisacurone B ((3))___∼ and bisacurone C ((4))___∼, were isolated from the chloroform-soluble fractions of the rhizomes of Curcuma xanthorrhiza (Zingiberaceae). The absolute structures of these new compounds were determined on the basis of their spectral data, chemical conversions and X-rat crystallography. In the process of determining the absolute structure of 1__∼, the stereochemistry reported for bisacurone ((5))___∼ in our previous paper was revised.