6893-84-1Relevant academic research and scientific papers
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
A complex of perseitol and K+ ion from Scurrula fusca (Loranthaceae)
Ishizu, Takashi,Tsujino, Etsuji,Winarno, Hendig,Ohashi, Kazuyoshi,Shibuya, Hirotaka
, p. 6887 - 6889 (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). The stereochemical structure of the complex was determined using several kinds of NMR techniques.
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).
