Ammonia → 7-[(R)-2-((E)-3-Hydroxy-4-phenyl-but-1-enyl)-6-oxo-piperidin-1-yl]-heptanoic acid amide

HRID 2052932Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2052932
C([N:3](CC)CC)C.[OH:8][CH:9]([CH2:28][C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=1)/[CH:10]=[CH:11]/[C@H:12]1[CH2:17][CH2:16][CH2:15][C:14](=[O:18])[N:13]1[CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][C:25](O)=[O:26].ClC(OCC)=O.N>C(Cl)Cl.CCOC(C)=O>[OH:8][CH:9]([CH2:28][C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=1)/[CH:10]=[CH:11]/[C@H:12]1[CH2:17][CH2:16][CH2:15][C:14](=[O:18])[N:13]1[CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][C:25]([NH2:3])=[O:26]

Komponenten

7

Edukt 4

HCID 222AmmoniaHCID 8471TriethylamineHCID 10928Ethyl chloroformateHCID 116892927-[(R)-2-((E)-3-Hydroxy-4-phenyl-but-1-enyl)-6-oxo-piperidin-1-yl]-heptanoic acid

Produkt 1

HCID 115016257-[(R)-2-((E)-3-Hydroxy-4-phenyl-but-1-enyl)-6-oxo-piperidin-1-yl]-heptanoic acid amideAusbeute 31,3 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6344DichloromethaneLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

Triethylamine (9 μL, 0.065 mmol) was added to a solution of 7-[(R)-2-((E)-3-hydroxy-4-phenyl-but-1-enyl)-6-oxo-piperidin-1-yl]-heptanoic acid (11.3 mg, 0.030 mmol) in CH2Cl2 (0.3 mL) at rt. After cooling to 0° C., ethyl chloroformate (3.2 μL, 0.033 mmol) was added. After 1 h at 0° C., a solution of ammonia (0.5 M in 1,4-dioxane, 0.3 mL, 0.15 mmol) was added and the reaction mixture was allowed to warm to rt. After 18 h at rt, the reaction mixture was diluted with EtOAc (10 mL) and washed with aqueous HCl (0.5 M, 3 mL), saturated aqueous NaHCO3 (5 mL) and brine (5 mL) then dried (Na2SO4), filtered and concentrated in vacuo. Purification of the residue by flash column chromatography on silica gel (CH2Cl2→3% MeOH/CH2Cl2, gradient) afforded 3.5 mg (31%) of the title compound.

Aufarbeitung

  1. temperatureto warm to rt
  2. waitAfter 18 h at rt
  3. washwashed with aqueous HCl (0.5 M, 3 mL), saturated aqueous NaHCO3 (5 mL) and brine (5 mL)
  4. dry with materialthen dried (Na2SO4)
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customPurification of the residue by flash column chromatography on silica gel (CH2Cl2→3% MeOH/CH2Cl2, gradient)

Quellen und Nachweise

ORD-Eintrag
ord-843c697f1dab4f02a10b2eac09d018c1
Quelldatensatz
uspto-grants-2008_02
Patentnummer
US07326716B2

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