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Water → N,N'-Bis(2,3-dihydroxypropionyl)-3,5-diamino-2,4,6-triiodobenzylalcohol

HRID 1604153
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1604153
CC1(C)[O:6][CH:5]([C:7]([NH:9][C:10]2[C:11]([I:33])=[C:12]([C:18]([I:32])=[C:19]([NH:22][C:23]([CH:25]3[CH2:29][O:28]C(C)(C)[O:26]3)=[O:24])[C:20]=2[I:21])[CH2:13]CC([O-])=O)=[O:8])[CH2:4][O:3]1.[OH2:35]>CO.Cl>[OH:26][CH:25]([CH2:29][OH:28])[C:23]([NH:22][C:19]1[C:18]([I:32])=[C:12]([C:11]([I:33])=[C:10]([NH:9][C:7](=[O:8])[CH:5]([OH:6])[CH2:4][OH:3])[C:20]=1[I:21])[CH2:13][OH:35])=[O:24]
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Komponenten

5

Edukt 2

HCID 962WaterHCID 18429246N,N'-Bis(2,2-dimethyl-1,3-dioxolane-4-carbonyl)-3,5-diamino-2,4,6-triiodobenzylacetate

Produkt 1

HCID 18429330N,N'-Bis(2,3-dihydroxypropionyl)-3,5-diamino-2,4,6-triiodobenzylalcohol

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 313Hydrochloric AcidLösungsmittelHCID 887MethanolLösungsmittel

Versuchsvorschrift

N,N'-Bis(2,2-dimethyl-1,3-dioxolane-4-carbonyl)-3,5-diamino-2,4,6-triiodobenzylacetate (1.25 g, 1.55 mol) was dissolved in a mixture of water (50 ml), methanol (25 ml) and concentrated HCl (0.5 ml). After stirring for 4 h, the solution was neutralized with aqueous NaH2PO4 and the solvents were removed by evaporation. The residue was dissolved in water (10 ml) and the pH was adjusted to 12 with aqueous NaOH. After 30 min, the solution was again neutralized and the solvent was evaporated. The product was purified by preparative HPLC. Yield: 483 mg (45%).

Aufarbeitung

  1. customthe solvents were removed by evaporation
  2. dissolutionThe residue was dissolved in water (10 ml)
  3. waitAfter 30 min
  4. customthe solvent was evaporated
  5. customThe product was purified by preparative HPLC

Quellen und Nachweise

ORD-Eintrag
ord-b9ca1e106de84bc5be7a32dd904dc836
Quelldatensatz
uspto-grants-1999_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US05993780

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