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Acetic Acid → N(4)-[(1R,3S,4S)-3-{[tert-butyl(dimethyl)silyl]oxy}-4-({[tert-butyl(dimethyl)silyl]-oxy}methyl)cyclopentyl]-5-chloropyridine-2,3,4-triamine

HRID 447669
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 447669
[Si:1]([O:8][C@@H:9]1[C@H:13]([CH2:14][O:15][Si:16]([C:19]([CH3:22])([CH3:21])[CH3:20])([CH3:18])[CH3:17])[CH2:12][C@@H:11]([NH:23][C:24]2[C:29]([Cl:30])=[CH:28][N:27]=[C:26]([NH2:31])[C:25]=2[N+:32]([O-])=O)[CH2:10]1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].C(O)(=O)C>[Zn]>[Si:1]([O:8][C@@H:9]1[C@H:13]([CH2:14][O:15][Si:16]([C:19]([CH3:22])([CH3:21])[CH3:20])([CH3:18])[CH3:17])[CH2:12][C@@H:11]([NH:23][C:24]2[C:29]([Cl:30])=[CH:28][N:27]=[C:26]([NH2:31])[C:25]=2[NH2:32])[CH2:10]1)([C:4]([CH3:5])([CH3:6])[CH3:7])([CH3:3])[CH3:2]
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Komponenten

4

Edukt 2

HCID 176Acetic AcidHCID 66797989N(4)-[(1R,3S,4S)-3-{[tert-butyl(dimethyl)silyl]oxy}-4-({[tert-butyl(dimethyl)-silyl]oxy}methyl)cyclopentyl]-5-chloro-3-nitropyridine-2,4-diamine

Produkt 1

HCID 66797912N(4)-[(1R,3S,4S)-3-{[tert-butyl(dimethyl)silyl]oxy}-4-({[tert-butyl(dimethyl)silyl]-oxy}methyl)cyclopentyl]-5-chloropyridine-2,3,4-triamineAusbeute 90,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 23994
Zinc
Katalysator

Versuchsvorschrift

N(4)-[(1R,3S,4S)-3-{[tert-butyl(dimethyl)silyl]oxy}-4-({[tert-butyl(dimethyl)-silyl]oxy}methyl)cyclopentyl]-5-chloro-3-nitropyridine-2,4-diamine (0.875 g, 0.00165 mol) and zinc (0.431 g, 0.00659 mol) was added to acetic acid (40.0 mL, 0.704 mol) with stirring for 10 mins. The mixture was stirred for 10 min and the solid was filtered off. The filtrate was concentrated, dissolved in EtOAc (50 mL) washed with water (2×10). To the organic phase was added 2 ml Et3N and the mixture was washed with 10 mL water. The organic layer was concentrated and purified by flash chromatography (30% EtOAc/hexanes) to afford the title compound (0.746 g, 90%) as a white solid.

Aufarbeitung

  1. stirringThe mixture was stirred for 10 min
  2. filtrationthe solid was filtered off
  3. concentrationThe filtrate was concentrated
  4. dissolutiondissolved in EtOAc (50 mL)
  5. washwashed with water (2×10)
  6. additionTo the organic phase was added 2 ml Et3N
  7. washthe mixture was washed with 10 mL water
  8. concentrationThe organic layer was concentrated
  9. custompurified by flash chromatography (30% EtOAc/hexanes)

Quellen und Nachweise

ORD-Eintrag
ord-61fabb1bbab34c42adba007042515216
Quelldatensatz
uspto-grants-2013_07
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08481550B2

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