CS271999B1 - 4-0-beta-d-glucopyranosile-d-xylopyranose - Google Patents

4-0-beta-d-glucopyranosile-d-xylopyranose Download PDF

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Publication number
CS271999B1
CS271999B1 CS894865A CS486589A CS271999B1 CS 271999 B1 CS271999 B1 CS 271999B1 CS 894865 A CS894865 A CS 894865A CS 486589 A CS486589 A CS 486589A CS 271999 B1 CS271999 B1 CS 271999B1
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CS
Czechoslovakia
Prior art keywords
xylopyranose
glucopyranosyl
beta
glucopyranosile
enzyme
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CS894865A
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English (en)
Slovak (sk)
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CS486589A1 (en
Inventor
Eva Rndr Csc Petrakova
Ivana Ing Krupova
Anna Ing Csc Ebringerova
Original Assignee
Petrakova Eva
Krupova Ivana
Ebringerova Anna
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Petrakova Eva, Krupova Ivana, Ebringerova Anna filed Critical Petrakova Eva
Priority to CS894865A priority Critical patent/CS271999B1/cs
Publication of CS486589A1 publication Critical patent/CS486589A1/cs
Publication of CS271999B1 publication Critical patent/CS271999B1/cs

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  • Saccharide Compounds (AREA)

Description

Vynález 8a týká 4-0-A -D-glukopyranozyl-D-xylopyranózy.
Doteraz bola izolovaná 3-0-β -D-glukopyranozyl-O-xylopyranóza tW, A. M. Ouncan,
O. 0. Mannara, 0. L, Thompson! Biochem. □ . 73, 295 (1959)]· a připravená 2-0-/J -D-glukopyranozyl-D-xylopyranóza [□. Κ. N. Dones, Ρ. E. Raid: Can. 3. Chem. 38, 944 (1960)^ . Tieto disacharidy boli použité pri š^údiu anzýmových reakcii. Nevýhodou však bola nekompletnost uvedenaj série látok, ktorá je potřebná na rozlišania mikroorganizmov a enzýmov. Doteraz 4-0-β-O-glukopyranozyl-D-xylopyranóza nabola připravená.
Túto nevýhodu odstraňuje tento vynález. Podstatou vynálezu Je 4-0- β-D-glukopyranozyl-D-xylopyranóza vzorca
OH
Výhodou tejto látky je, že kompletizuje sériu β-D-glukopyranozyl-O-xylopyranóz, a tak rozšiřuje možnost testovat mikroorganizmy.
Přiklad 1
K 0,4 g banzyl 2,3-di-O-benzyl-y) -D-xylopyrenozidu sa přidá 0,36 g kyanidu ortutnatého v 4 ml dichlormetánu a 0,58 g 2,3,4,6-tatra-0-acstyl-X -O-glukopyranozylbromidu a za stálého miešania sa reakčná zmes udržuje při teplote 20 °C počas 2 hodin. Potom sa reakčná zmes odfiltruje, dvakrát vytrape a 50 ml 1 molárnsho roztoku bromidu draselného, 50 ml vody, vysuší přidáním bezvodého síranu sodného, odfiltruje a zahustí. Po chromatograf ickom čiatsni sa ziaka 0,56 g (78,9 %) bsnzyl 2,3-di-0-banzy1-4-0-(2,3,4,6-tstra-Cace + vl-j^-D-.<'lukopyranozyl)-^-D-xylopyranozidii, z ktorého sa acetylové skupiny odstránia . posobenim 1 molárneho metanolátu sodného. Produkt sa po katonizácii na kataxa a funkčnými sulfoskupinami (Oowax 50 W X 4 0,040 až 0,075 mm) hydrogenuje za katalýzy paládiom na nosiči uhlika (5 hmot. % paládia) v prostředí metanolu. Zieka sa 4-0-/S -D-glukopyranozyl-D-xylopyranóza v calkovom výtažku 74,5 % (vztahované na benzyl 2,3-di-0-banzyl-/á-D-xylopyranozid) so špecifickou otáčavostou [«(.l^ - 4,0 0 (c 0,5, voda).
D
Elementárna analýza pra Η20θ10 ’ m0·'·· hmotnost 312,27s
Vypočítané i 42,31 hmot. % uhlika, 6,45 hmot. % vodika, ziatené s 42,20 hmot. % uhlika, 6,56 hmot. % vodíka.
4-0-β -D-glukopyranozyl-D-xylopyranóza može dájst' široké, použitie v-snžýiiibvéj, organickej chémii a na rozlišenis mikroorganizmov.

Claims (1)

  1. 4-0-^J -D-glukopyranozyl-O-xylopyranóza vzorca
    CHgOH J—— n iH
    OH
CS894865A 1989-08-18 1989-08-18 4-0-beta-d-glucopyranosile-d-xylopyranose CS271999B1 (en)

Priority Applications (1)

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CS894865A CS271999B1 (en) 1989-08-18 1989-08-18 4-0-beta-d-glucopyranosile-d-xylopyranose

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CS894865A CS271999B1 (en) 1989-08-18 1989-08-18 4-0-beta-d-glucopyranosile-d-xylopyranose

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CS486589A1 CS486589A1 (en) 1990-03-14
CS271999B1 true CS271999B1 (en) 1990-12-13

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