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An inositol → An inositol

HRID 2416411
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2416411
[CH:1]1([OH:12])[CH:6]([OH:7])[CH:5]([OH:8])[CH:4]([OH:9])[CH:3]([OH:10])[CH:2]1[OH:11].C(O)[C@H]1O[C@H]([O:20][CH:21]2[C@@H:26]([OH:27])[C@@H:25]([OH:28])[CH:24]([OH:29])[C@H:23]([OH:30])[C@H:22]2[OH:31])[C@H](O)[C@@H](O)[C@H]1O.[CH2:36]([OH:58])[C@H:37]1[O:42][C@H:41]([O:43][CH:44]2[C@@H:49]([OH:50])[C@H:48]([OH:51])[CH:47]([OH:52])[C@@H:46]([OH:53])[C@@H:45]2[OH:54])[C@H:40]([OH:55])[C@@H:39]([OH:56])[C@H:38]1[OH:57]>>[O:7]=[CH:6][C@@H:5]([C@H:4]([C@H:3]([C@@H:2]([CH2:1][OH:12])[OH:11])[OH:10])[OH:9])[OH:8].[CH:21]1([OH:20])[CH:22]([OH:31])[CH:23]([OH:30])[CH:24]([OH:29])[CH:25]([OH:28])[CH:26]1[OH:27].[CH2:36]([OH:58])[C@H:37]1[O:42][C@H:41]([O:43][CH:44]2[C@@H:45]([OH:54])[C@@H:46]([OH:53])[CH:47]([OH:52])[C@H:48]([OH:51])[C@H:49]2[OH:50])[C@H:40]([OH:55])[C@@H:39]([OH:56])[C@H:38]1[OH:57]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 3

HCID 892An inositol2×HCID 9840967fagopyritol A1HCID 9906026HCID 9906026, Verbindung

Produkt 3

HCID 892An inositolHCID 3037556(2R,3S,4S,5R)-2,3,4,5,6-pentahydroxyhexanalHCID 9840967
fagopyritol A1

Versuchsvorschrift

Results. Buckwheat bran was extracted with 50% EtOH, and the resulting extract chromatographed on carbon-Celite, 1:1 (w/w), to purify Fagopyritol A1. Fagopyritol B1 was also purified from the same sample for comparison. Per(pentafluoropropionates) of chiro-inositol from acid hydrolysis of Fagopyritol A1 and Fagopyritol B1 co-chromatographed on a chiral column with authentic D-chiro-inositol, but not with authentic L-chiro-inositol. Hydrolysis of Fagopyritol A1 and Fagopyritol B1 produced D-galactose and D-chiro-inositol in mole ratios of 1.01:1.00 for Fagopyritol A1 and 1.03:1.00 for Fagopyritol B11. Free D-chiro-inositol was obtained by acid hydrolysis of a mixture of Fagopyritol A1 and Fagopyritol B1 followed by purification on a carbon-Celite column. Fagopyritol A1 and Fagopyritol B1 were hydrolyzed by β-D-galactosidase, but not by β-D-galactosidase, demonstrating an α-D-galactopyranosyl linkage.

Aufarbeitung

  1. customResults
  2. extractionBuckwheat bran was extracted with 50% EtOH
  3. extractionthe resulting extract
  4. customchromatographed on carbon-Celite, 1:1 (w/w)
  5. customto purify Fagopyritol A1
  6. customFagopyritol B1 was also purified from the same sample for comparison
  7. customPer(pentafluoropropionates) of chiro-inositol from acid hydrolysis of Fagopyritol A1 and Fagopyritol B1

Quellen und Nachweise

ORD-Eintrag
ord-dc18771ad84b4588bca7181e52339f02
Quelldatensatz
uspto-grants-2004_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US06825173B2

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