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Ethyl 1-aminocyclopropane-1-carboxylate hydrochloride → (1R*,2S*)-N,N-Bis(tert-butoxycarbonyl)-4-[(1-ethoxycarbonyl)cyclopropan-1-yl]amino-1,2-cyclohexanediamine

HRID 459538
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 459538
Cl.[NH2:2][C:3]1([C:6]([O:8][CH2:9][CH3:10])=[O:7])[CH2:5][CH2:4]1.[C:11]([O:15][C:16]([N:18]([C:27]([O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[O:28])[C@@H:19]1[CH2:24][CH2:23][C:22](=O)[CH2:21][C@@H:20]1[NH2:26])=[O:17])([CH3:14])([CH3:13])[CH3:12].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(=O)([O-])O.[Na+]>ClCCl>[C:30]([O:29][C:27]([N:18]([C:16]([O:15][C:11]([CH3:14])([CH3:13])[CH3:12])=[O:17])[C@@H:19]1[CH2:24][CH2:23][CH:22]([NH:2][C:3]2([C:6]([O:8][CH2:9][CH3:10])=[O:7])[CH2:5][CH2:4]2)[CH2:21][C@@H:20]1[NH2:26])=[O:28])([CH3:33])([CH3:32])[CH3:31]
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Komponenten

6

Edukt 4

HCID 386203Ethyl 1-aminocyclopropane-1-carboxylate hydrochlorideHCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 68905437(1R*,2S*)-N,N-bis(tert-butoxycarbonyl)-4-oxo-1,2-cyclohexanediamine

Produkt 1

HCID 68910855(1R*,2S*)-N,N-Bis(tert-butoxycarbonyl)-4-[(1-ethoxycarbonyl)cyclopropan-1-yl]amino-1,2-cyclohexanediamine

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

Ethyl 1-aminocyclopropanecarboxylate hydrochloride (1.63 g) was dissolved in dichloromethane (60 ml), and (1R*,2S*)-N,N-bis(tert-butoxycarbonyl)-4-oxo-1,2-cyclohexanediamine (3.0 g) and sodium triacetoxyborohydride (2.51 g) were added to stir the mixture at room temperature for 3 hours. An aqueous solution of sodium hydrogencarbonate was added to separate an organic layer. The organic layer was dried over anhydrous sodium sulfate. The solvent was distilled off under reduced pressure, and the residue was purified by column chromatography on silica gel (hexane:ethyl acetate=3:1→1:1) to obtain the title compounds (Stereoisomer A: 1.43 g and Stereoisomer B: 2.17 g) as colorless amorphous solids.

Aufarbeitung

  1. customto separate an organic layer
  2. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  3. distillationThe solvent was distilled off under reduced pressure
  4. customthe residue was purified by column chromatography on silica gel (hexane:ethyl acetate=3:1→1:1)

Quellen und Nachweise

ORD-Eintrag
ord-d6fc40ca59b2451b8aa98178cff62e1a
Quelldatensatz
uspto-grants-2007_03
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07192968B2

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