Triethylamine → (3S,6R)-3-(tert-butoxycarbonyl)aminohexahydro-6-([[pentyloxy]carbonyl]oxy)-2H-azepin-2-one

HRID 1358922Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1358922
C(N(CC)CC)C.Cl[C:9]([O:11][CH2:12][CH2:13][CH2:14][CH2:15][CH3:16])=[O:10].[C:17]([O:21][C:22]([NH:24][C@H:25]1[CH2:31][CH2:30][C@@H:29]([OH:32])[CH2:28][NH:27][C:26]1=[O:33])=[O:23])([CH3:20])([CH3:19])[CH3:18]>C(Cl)Cl>[C:17]([O:21][C:22]([NH:24][C@H:25]1[CH2:31][CH2:30][C@@H:29]([O:32][C:9]([O:11][CH2:12][CH2:13][CH2:14][CH2:15][CH3:16])=[O:10])[CH2:28][NH:27][C:26]1=[O:33])=[O:23])([CH3:20])([CH3:18])[CH3:19]

Komponenten

5

Edukt 3

HCID 8471TriethylamineHCID 69489Pentyl chloroformateHCID 11149222(3S,6R)-3-(tert-butoxycarbonyl)aminohexahydro-6-hydroxy-2H-azepin-2-one

Produkt 1

HCID 69978794(3S,6R)-3-(tert-butoxycarbonyl)aminohexahydro-6-([[pentyloxy]carbonyl]oxy)-2H-azepin-2-oneAusbeute 60 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

Triethylamine (2 mL, 15 mmol) is added to a solution of pentyl chloroformate (1.8 g, 12.2 mmol), (3S 6R)-3-(tert-butoxycarbonyl)aminohexahydro-6-hydroxy-2H-azepin-2-one (1.5 g, 6.1 mmol) and 20 mL of CH2Cl2 at 5° C. The reaction mixture is stirred at room temperature overnight. The reaction mixture is then partitioned with water, and the organic layer is dried (Na2SO4), and concentrated by rotary evaporation. The resulting residue is chromatographed (5% EtOAc-CH2Cl2) to give 1.3 g (60%) of (3S,6R)-3-(tert-butoxycarbonyl)aminohexahydro-6-([[pentyloxy]carbonyl]oxy)-2H-azepin-2-one as a pale yellow solid: 1H NMR (CDCl3): δ 5.90 (d, J=6 Hz, 1H), 5.77 (t, J=6 Hz, 1H), 4.79 (m, 1H), 4.30 (m, 1H), 4.12 (m, 3H), 3.53 (m, 2H), 2.24 (m, 1H), 1.92 (m, 2H), 1.66 (m, 1H), 1.44 (s, 9H), 1.34 (m, 5H), 0.91 (m, 3H).

Aufarbeitung

  1. customThe reaction mixture is then partitioned with water
  2. dry with materialthe organic layer is dried (Na2SO4)
  3. concentrationconcentrated by rotary evaporation
  4. customThe resulting residue is chromatographed (5% EtOAc-CH2Cl2)

Quellen und Nachweise

ORD-Eintrag
ord-a20e1a541ad448b3a707be7a4db653cc
Quelldatensatz
uspto-grants-2003_07
Patentnummer
US06599898B2

Notizen zur Reaktion

Wird geladen…