CS271999B1 - 4-0- β-D-glukopyranozyl-D-xylopyranóza - Google Patents
4-0- β-D-glukopyranozyl-D-xylopyranóza Download PDFInfo
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- 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
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- glucopyranosyl
- xylopyranose
- enzyme
- microorganisms
- benzyl
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- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- 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)
- 4-0-^J -D-glukopyranozyl-O-xylopyranóza vzorcaCHgOH J—— n iHOH
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS894865A CS271999B1 (sk) | 1989-08-18 | 1989-08-18 | 4-0- β-D-glukopyranozyl-D-xylopyranóza |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS894865A CS271999B1 (sk) | 1989-08-18 | 1989-08-18 | 4-0- β-D-glukopyranozyl-D-xylopyranóza |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS486589A1 CS486589A1 (en) | 1990-03-14 |
| CS271999B1 true CS271999B1 (sk) | 1990-12-13 |
Family
ID=5392347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS894865A CS271999B1 (sk) | 1989-08-18 | 1989-08-18 | 4-0- β-D-glukopyranozyl-D-xylopyranóza |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS271999B1 (cs) |
-
1989
- 1989-08-18 CS CS894865A patent/CS271999B1/cs unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS486589A1 (en) | 1990-03-14 |
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