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2-Aminopyridine → 2-(3-cyano-4-methanesulfonyl-phenyl)-3-cyclopentyl-N-pyridin-2-yl-propionamide

HRID 430273
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 430273
C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.BrN1C(=O)CCC1=O.[C:28]([C:30]1[CH:31]=[C:32]([CH:40]([CH2:44][CH:45]2[CH2:49][CH2:48][CH2:47][CH2:46]2)[C:41](O)=[O:42])[CH:33]=[CH:34][C:35]=1[S:36]([CH3:39])(=[O:38])=[O:37])#[N:29].[NH2:50][C:51]1[CH:56]=[CH:55][CH:54]=[CH:53][N:52]=1>C(Cl)Cl>[C:28]([C:30]1[CH:31]=[C:32]([CH:40]([CH2:44][CH:45]2[CH2:46][CH2:47][CH2:48][CH2:49]2)[C:41]([NH:50][C:51]2[CH:56]=[CH:55][CH:54]=[CH:53][N:52]=2)=[O:42])[CH:33]=[CH:34][C:35]=1[S:36]([CH3:39])(=[O:38])=[O:37])#[N:29]
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 4

HCID 104392-AminopyridineHCID 11776TriphenylphosphineHCID 67184N-bromobutanimideHCID 120694992-(3-Cyano-4-methanesulfonyl-phenyl)-3-cyclopentyl-propionic acid

Produkt 1

HCID 223152192-(3-cyano-4-methanesulfonyl-phenyl)-3-cyclopentyl-N-pyridin-2-yl-propionamideAusbeute 76,7 %

Reagenzien, Katalysatoren, Lösungsmittel

1
HCID 6344DichloromethaneLösungsmittel

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

A solution of triphenylphosphine (98 mg, 0.37 mmol) in methylene chloride (1 mL) was cooled to 0° C. and then slowly treated with N-bromosuccinimide (67 mg, 0.37 mmol). The reaction mixture was stirred at 0° C. for 15 min and then treated with 2-(3-cyano-4-methanesulfonyl-phenyl)-3-cyclopentyl-propionic acid (100 mg, 0.31 mmol). The resulting reaction mixture was stirred at 0° C. for 5 min and then allowed to warm to 25° C. where it was stirred for 30 min. The reaction mixture was then treated with 2-aminopyridine (64 mg, 0.68 mmol). The resulting reaction mixture was stirred at 25° C. for 15 h. The crude reaction mixture was then directly purified by flash chromatography (Merck Silica gel 60, 230-400 mesh, 1/1 hexanes/ethyl acetate) to afford 2-(3-cyano-4-methanesulfonyl-phenyl)-3-cyclopentyl-N-pyridin-2-yl-propionamide (94.5 mg, 76%) as a yellow foam: mp 87-90° C. (foam to gel); EI-HRMS m/e calcd for C21H23N3O3S (M+) 397.1460, found 397.1460.

Aufarbeitung

  1. customThe resulting reaction mixture
  2. stirringwas stirred at 0° C. for 5 min
  3. temperatureto warm to 25° C. where it
  4. stirringwas stirred for 30 min
  5. customThe resulting reaction mixture
  6. stirringwas stirred at 25° C. for 15 h
  7. customThe crude reaction mixture
  8. customwas then directly purified by flash chromatography (Merck Silica gel 60, 230-400 mesh, 1/1 hexanes/ethyl acetate)

Quellen und Nachweise

ORD-Eintrag
ord-901704a731234dbab9cdeacd8256f727
Quelldatensatz
uspto-grants-2001_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US06320050B1

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