Bis(4-nitrophenyl) carbonate → tert-butyl(2S,3S)-3-methyl-2-{3-[(6-methyl-2-pyridinyl)methyl]-2-oxo-1-imidazolidinyl}pentanoate

HRID 243591

Reaktionsgleichung

Reaktionsgleichung von HRID 243591
[CH3:1][C@@H:2]([CH2:23][CH3:24])[C@H:3]([NH:11][CH2:12][CH2:13][NH:14][CH2:15][C:16]1[CH:21]=[CH:20][CH:19]=[C:18]([CH3:22])[N:17]=1)[C:4]([O:6][C:7]([CH3:10])([CH3:9])[CH3:8])=[O:5].[C:25](=O)(OC1C=CC([N+]([O-])=O)=CC=1)[O:26]C1C=CC([N+]([O-])=O)=CC=1>CN(C)C=O>[CH3:1][C@@H:2]([CH2:23][CH3:24])[C@H:3]([N:11]1[CH2:12][CH2:13][N:14]([CH2:15][C:16]2[CH:21]=[CH:20][CH:19]=[C:18]([CH3:22])[N:17]=2)[C:25]1=[O:26])[C:4]([O:6][C:7]([CH3:10])([CH3:8])[CH3:9])=[O:5]

Komponenten

4

Edukt 2

HCID 78756Bis(4-nitrophenyl) carbonateHCID 86598719tert-butyl(2S,3S)-3-methyl-2-[(2-{[(6-methyl-2-pyridinyl)methyl]amino}ethyl)amino]pentanoate

Produkt 1

HCID 86598718tert-butyl(2S,3S)-3-methyl-2-{3-[(6-methyl-2-pyridinyl)methyl]-2-oxo-1-imidazolidinyl}pentanoateAusbeute 57 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

A solution of the product of Example 32D in N,N-dimethylformamide (60 mL) was treated with bis-(p-nitrophenyl) carbonate (12.6 g, 1.2 equivalents) at 50° C. for 5 hrs. The solvents were evaporated, and the residue was partitioned between water and ethyl acetate. The organic layer was separated, washed with brine, dried over Na2SO4, filtered, and the solvents were evaporated, and the residue was purified using ethyl acetate:hexanes (2:1) to give 7.3 g (57%) of the title compound.

Aufarbeitung

  1. customThe solvents were evaporated
  2. customthe residue was partitioned between water and ethyl acetate
  3. customThe organic layer was separated
  4. washwashed with brine
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered
  7. customthe solvents were evaporated
  8. customthe residue was purified

Quellen und Nachweise

ORD-Eintrag
ord-c77d372bf9724b93b7948c21429045bd
Quelldatensatz
uspto-grants-2014_02
Patentnummer
US08653141B2

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