Ouverture des vinyloxiranes par le fluorhydrate de triéthylamine triacide
作者:A. Hedhli、A. Baklouti
DOI:10.1016/0022-1139(94)03104-8
日期:1995.1
The action of triethylamine trihydrogen fluoride on vinyloxiranes leads, under mild conditions, to the corresponding fluorinated homoallylic alcohols. Some of these alcohols are unstable and accordingly have been converted into the corresponding more stable tosylates.
Isolation and synthesis of a novel immunosuppressive 17α-substituted dammarane from the flour of the Palmyrah palm (Borassus flabellifer)
作者:L. Révész、P. Hiestand、L. La Vecchia、R. Naef、H.-U. Naegeli、L. Oberer、H.-J. Roth
DOI:10.1016/s0960-894x(99)00220-6
日期:1999.6
The noveltriterpene 1 with a dammarane skeleton and a hitherto unknown 17alpha-substitution pattern has been isolated from the Palmyrah palm in low yield and prepared by synthesis in larger quantities. 1 was shown to be an extremely potent immunosuppressant in vitro (MLR; IC50 = 10 ng/ml) and in vivo (DTH; ED50 = 0.01 mg/kg p.o.). A glucocorticoid like activity is excluded.
从丹葵棕榈中分离出具有丹玛烷骨架和迄今未知的17α-取代模式的新型三萜1,并通过大量合成制备。1在体外(MLR; IC50 = 10 ng / ml)和体内(DTH; ED50 = 0.01 mg / kg po)被证明是一种非常有效的免疫抑制剂。排除类似糖皮质激素的活性。
Aumann,R. et al., Chemische Berichte, 1979, vol. 112, p. 3644 - 3671
作者:Aumann,R. et al.
DOI:——
日期:——
Deux, Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1938, vol. 207, p. 920
作者:Deux
DOI:——
日期:——
Palladium-catalyzed reaction of 1,3-diene monoepoxides with .beta.-keto acids. Allylic alkylation and isomerization of 1,3-diene monoepoxides