6893-85-2Relevant academic research and scientific papers
A complex of perseitol and K+ ion from Scurrula fusca (Loranthaceae)
Ishizu, Takashi,Tsujino, Etsuji,Winarno, Hendig,Ohashi, Kazuyoshi,Shibuya, Hirotaka
, p. 6887 - 6889 (2001)
A complex of perseitol (D-glycero-D-galacto-heptitol) and K+ ions in a molar ratio of 20:1 was isolated from the leaves of Scurrula fusca (Loranthaceae). The stereochemical structure of the complex was determined using several kinds of NMR techniques.
Indonesian medicinal plants. XXIV. Stereochemical structure of perseitol x K+ complex isolated from the leaves of Scurrula fusca (Loranthaceae).
Ishizu, Takashi,Winarno, Hendig,Tsujino, Etsuji,Morita, Tetsuo,Shibuya, Hirotaka
, p. 489 - 492 (2007/10/03)
A complex of perseitol (D-glycero-D-galacto-heptitol) and K+ ions in a molar ratio of 20:1 was isolated from the leaves of Scurrula fusca (Loranthaceae), which has been traditionally used for the treatment of cancer in Sulawesi Island, Indonesia. The ster
Synthesis of four diastereomeric octofuranoses from D-glucofuranurono-6,3-lactone via Grignard reactions
Dax, Karl,Fechter, Martin,Gradnig, Guenther,Grassberger, Vera,Illaszewicz, Carina,et al.
, p. 59 - 70 (2007/10/02)
Reduction of 5-O-tert-butyldimethylsilyl-1,2-O-isopropylidene-α-D-gluco- (2) and -β-L-idofuranurono-6,3-lactone (3) with diisobutylaluminum hydride (DIBAL-H) to the respective hemiacetal at C-6, followed by reaction with vinylmagnesium bromide in either ether or tetrahydrofuran, gives the corresponding diastereomeric pairs of 7,8-dideoxyoct-7-eno-1,4-furanoses.The configurations of the products at C-6 were determined after oxidative cleavage of the terminal double bond and reduction of the aldehyde by conversion of the resulting heptoses into the known corresponding per-O-acetylated heptitols.
THE SYNTHESIS OF SOME SEVEN-CARBON SUGARS via THE OSMYLATION OF OLEFINIC SUGARS
Brimacombe, John S.,Kabir, Abul K. M. S.
, p. 35 - 52 (2007/10/02)
The stereochemical outcome of the catalytic osmylation of 6,7-dideoxy-1,2:3,4-di-O-isopropylidene-α-D-galacto-hept-6-enopyranose (10), 5,6-dideoxy-1,2-O-isopropylidene-α-D-xylo-hex-5-enofuranose, (E)- and (Z)-3-O-benzyl-5,6-dideoxy-1,2-O-isopropylidene-α-D-xylo-hept-5-enofuranose (20 and 27, respectively), methyl (Z)-3-O-benzyl-5,6-dideoxy-1,2-O-isopropylidene-α-D-xylo-hept-5-enofuranuronate (26), (E)-3-O-benzyl-5,6-dideoxy-1,2-O-isopropylidene-α-D-ribo-hept-5-enofuranose, benzyl (E)- and (Z)-5,6-dideoxy-2,3-O-isopropylidene-α-D-lyxo-hept-5-enofuranoside (46 and 50, respectively), and methyluronate (49) has been examined.Such oxidations led to satisfactory syntheses of L-glycero-D-gluco-heptose and the corresponding heptitol (from 20), L-glycero-D-gulo-heptitol (from 26), D-glycero-D-gluco-heptitol (from 27), D-glycero-D-galacto-heptitol (from 10 and 46), (meso)-glycero-gulo-heptitol (from 49), and D-glycero-D-manno-heptitol (from 50).
