CS274091B1 - 4-0-beta-d-xylopyranozyl-d-glucopyranose - Google Patents

4-0-beta-d-xylopyranozyl-d-glucopyranose Download PDF

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Publication number
CS274091B1
CS274091B1 CS491989A CS491989A CS274091B1 CS 274091 B1 CS274091 B1 CS 274091B1 CS 491989 A CS491989 A CS 491989A CS 491989 A CS491989 A CS 491989A CS 274091 B1 CS274091 B1 CS 274091B1
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CS
Czechoslovakia
Prior art keywords
glucopyranose
xylopyranozyl
beta
xylopyranosyl
enzyme
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CS491989A
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English (en)
Slovak (sk)
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CS491989A1 (en
Inventor
Eva Rndr Csc Petrakova
Ivana Ing Krupova
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Petrakova Eva
Krupova Ivana
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Priority to CS491989A priority Critical patent/CS274091B1/cs
Publication of CS491989A1 publication Critical patent/CS491989A1/cs
Publication of CS274091B1 publication Critical patent/CS274091B1/cs

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Description

Vynález sa týká 4-0- /í-O-xylopyranozyl-D-glukopyranózy.
Doteraz bole připravená 6-0-Á?-Q-xylopyranozyl-0-glukopyrenóza J^B.Helfarich, R. Steinpreis: Chem. Ber. 91, 1794 (1958)] · Tento diaacharid bol použitý pri Stúdiu enzymových reakclí. Nevýhodou vSak bolo,’ že nie Je vhodným aubatrátom pre mnohé enzýmy a mikroorganizmy. Doteraz 4-0-/3-D-xylopyranozyl-0-glukopyranóza nebole připravená, Túto nevýhodu odstraňuje tento vynález. Podatatou vynálezu Je 4-0-/J»D-xylopyranozyl-O-glukopyranóza vzorce
Výhodou tejto látky je, ža roziiruja možnost testovat enzýmy a mikroorganizmy. Přiklad 1
Klg 1,2,3,6-tetra-0-acetyl-/3-D-glukopyranózy aa přidá 1,5 g kyanidu ortufnatého v 10 ml ocetonltrilu a 2 g 2,3,4-tri-O-acetyl-«ί-D-xylopyranozylbromidu a za stálého mieáania ea roakčnó zmes udržuje pri teplote 20 °C počae 2 hodin. Potom ea reakčná zmea odfiltruje, zriedi 50 ml chloroformu, dvakrát vytrepe 50 ml 1 molérneho roztoku bromidu draselného, 50 ml vody, vyauči pridanim bezvodého síranu sodného, odfiltruje, zahuati. Po chromatografickom čieteni ea zíaka 1,13 g (65 %) l,2,3,6-tetro-0-ecetyl-4-0-(2,3,4-tri0-acetyl-/í-D-xylopyranozyl)-/í-O-flukopyranózy, po rakryčtalizácii z etanolu a teplotou topenia 160 až 161 °C,’ Specifickou otáčavoafouToí]25 - 38,6 0 (e 0/86,1 chloroform). 0 ·
Elementárna analýza pre ^gHggOj?, mol. hmotnost 806,52i vypočítané: 49,50 hmot. % uhlíka,' 5,82 hmot, % vodíka, zlatěné : 49,51 hmot. % uhlíka, 5,72 hmot. % vodika.
Acetylové skupiny aa odstránia pSeobenim 1 molérneho matanolétu sodného. Produkt aa po ketlonizácli na katexe a funkčnými eulfoakupinami (Domex 80 W X 4 0,040 až 0,075 mm) kryéta llzoval z metanolu,· teplota topenia po rakryitallzácii bola 218 až 220 °C, Specifická otáčavoet ♦ 24,5 0 (c 0,97, voda).
Elementárna analýza pre θχχΗ20°10* B0^· hmotnost 312,27« vypočítané i 42,'31 hmot. % uhlika, 6,45 hmot. % vodika. zlatěné; 42,10 hmot. % uhlika, 6,53 hmot. % vodíka* 4-0-^-D-Xylopyranožyl-D-glukopýřanóza može néjat áiroké použitie v enzýmovaj, organickej chémii a na rozliěenle raikroorganizmov.

Claims (1)

  1. PREDMET VYNÁLEZU 4-o-/?-D-Xylopyranozyl-D-glukopyranóza vzorca ; HO
    OH CH2 OH
    Ol OH Λ H.OH
CS491989A 1989-08-22 1989-08-22 4-0-beta-d-xylopyranozyl-d-glucopyranose CS274091B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CS491989A CS274091B1 (en) 1989-08-22 1989-08-22 4-0-beta-d-xylopyranozyl-d-glucopyranose

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CS491989A CS274091B1 (en) 1989-08-22 1989-08-22 4-0-beta-d-xylopyranozyl-d-glucopyranose

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CS491989A1 CS491989A1 (en) 1990-08-14
CS274091B1 true CS274091B1 (en) 1991-04-11

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