156769-17-4Relevant articles and documents
A LIGNAN FROM SCHIZANDRA CHINENSIS
Ikeya, Yukinobu,Taguchi, Heihachiro,Mitsuhashi, Hiroshi,Takeda, Shigefumi,Kase, Yoshio,Aburada, Masaki
, p. 569 - 574 (1988)
A new dibenzocyclooctadiene lignan, isoschizandrin was isolated from the fruits of Schizandra chinensis.The structure was elucidated on the basis of the spectral analysis and chemical correlation with schizandrin and (+)-deoxyschizandrin.In experiments using rats, schizandrin and its derivatives, including isoschizandrin, showed inhibitory effects on stress-induced gastric ulceration (p.o).Key Word Index-Schizandra chinensis; Schizandraceae; dibenzocyclooctadiene; lignan; isoschizandrin; anti-ulcer effect.
Ruthenium dioxide in fluoro acid medium V. Application to the non phenolic oxidative coupling of diarylbutanes. Conformational studies of cis and trans deoxyschizandrins
Dhal,Landais,Lebrun,Lenain,Robin
, p. 1153 - 1164 (2007/10/02)
Ruthenium (IV) dioxide dihydrate in fluoro acidic medium was found to be a very efficient agent for the non phenolic oxidative coupling of diarylbutanes. We observed along with the expected aryl-aryl coupling, an unusual aryl-benzyl coupling, leading to a known class of lignans, the aryltetralins. Conformational studies of resultant cis and trans deoxyschizandrins were performed using high resolution NMR and molecular models.
RUTHENIUM(IV) TETRAKIS(TRIFLUOROACETATE), A NEW OXIDIZING AGENT. II. A NEW ACCESS TO SCHIZANDRINS SKELETON USING BIARYL OXIDATIVE COUPLING OF CIS-SUBSTITUTED BUTANOLIDES
Landais, Y.,Lebrun, A.,Robin, J. P.
, p. 5377 - 5380 (2007/10/02)
The use of the title reagent -RUFTA- was applied to the first stereospecific synthesis of bridged biaryl lactones from the corresponding cis-2,3-dibenzyl- and 3-benzyl-2-benzyliden- butanolides, respectively.A short reduction sequence afforded deoxyschiza
