Triethylamine → (3S, 6R)-3-(tert-butoxycarbonyl)aminohexahydro-6-(cyclohexanecarbonyl)oxy-2H-azepin-2-one

HRID 1267834Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1267834
C(N(CC)CC)C.[CH:8]1([C:14](Cl)=[O:15])[CH2:13][CH2:12][CH2:11][CH2:10][CH2:9]1.[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:14]([CH:8]2[CH2:13][CH2:12][CH2:11][CH2:10][CH2:9]2)=[O:15])[CH2:28][NH:27][C:26]1=[O:33])=[O:23])([CH3:20])([CH3:18])[CH3:19]

Komponenten

5

Edukt 3

HCID 8471TriethylamineHCID 75938Cyclohexanecarbonyl chlorideHCID 11149222(3S,6R)-3-(tert-butoxycarbonyl)aminohexahydro-6-hydroxy-2H-azepin-2-one

Produkt 1

HCID 11810372(3S, 6R)-3-(tert-butoxycarbonyl)aminohexahydro-6-(cyclohexanecarbonyl)oxy-2H-azepin-2-oneAusbeute 99,5 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

Triethylamine (8.4 mL, 60 mmol) is added to a solution of cyclohexanecarbonyl chloride (6.3 g, 43.0 mmol), (3S, 6R)-3-(tert-butoxycarbonyl)aminohexahydro-6-hydroxy-2H-azepin-2-one (7.0 g, 28.7mmol) and 100 mL of CH2Cl2 at 50° C. The reaction mixture is stirred at room temp. overnight. The reaction mixture is then partitioned with water, and the organic layer is dried (Na2SO4), and concentrated with rotary evaporation. The resulting residue is chromatographed (5% EtOAc—CH2Cl2) to give 10.1 g (99.5% of (3S, 6R)-3-(tert-butoxycarbonyl)aminohexahydro-6-(cyclohexanecarbonyl)oxy-2H-azepin-2-one as a white solid: 1H NMR (CDCl3): δ 5.89 (d, J=5.27 Hz, 1H), 5.65 (t, J=4.90 Hz, 1H), 4.89 (s, 1H), 4.30 (q, J=4.14 Hz, 1H), 3.49 (m, 2H), 2.31 (tt, J=10.92 Hz and 3.39 Hz, 1H), 2.13 (d, J=14.32 Hz, 1H), 1.98 (d, J=13.56 Hz, 2H), 1.88 (d, J=14.31 Hz, 2H), 1.75 (d, J=11.30 Hz, 2H), 1.66 (s, 2H), 1.45 (s, 9H), 1.30 (m, 5H).

Aufarbeitung

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

Quellen und Nachweise

ORD-Eintrag
ord-3a42a6d8989f4e739a76f064aebd18b7
Quelldatensatz
uspto-grants-2003_04
Patentnummer
US06555533B2

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