Triethylamine → tert-Butyl [3-(1-Hydroxy-1-methylethyl)-3-(4-[4-(trifluoromethyl)pyridin-2-yl]piperazin-1-ylcarbonyl)cyclopentyl]carbamate

HRID 1044613Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1044613
[C:1]([O:5][C:6]([NH:8][C@H:9]1[CH2:13][CH2:12][C:11]([C:17]([OH:20])([CH3:19])[CH3:18])([C:14]([OH:16])=O)[CH2:10]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[F:21][C:22]([F:36])([F:35])[C:23]1[CH:28]=[CH:27][N:26]=[C:25]([N:29]2[CH2:34][CH2:33][NH:32][CH2:31][CH2:30]2)[CH:24]=1.C(N(CC)CC)C.F[P-](F)(F)(F)(F)F.N1(O[P+](N(C)C)(N(C)C)N(C)C)C2C=CC=CC=2N=N1>C(Cl)Cl>[C:1]([O:5][C:6](=[O:7])[NH:8][CH:9]1[CH2:13][CH2:12][C:11]([C:17]([OH:20])([CH3:19])[CH3:18])([C:14]([N:32]2[CH2:33][CH2:34][N:29]([C:25]3[CH:24]=[C:23]([C:22]([F:36])([F:21])[F:35])[CH:28]=[CH:27][N:26]=3)[CH2:30][CH2:31]2)=[O:16])[CH2:10]1)([CH3:2])([CH3:3])[CH3:4]

Komponenten

6

Edukt 4

HCID 8471TriethylamineHCID 151348Benzotriazol-1-yloxy-tris(dimethylamino)phosphonium hexafluorophosphateHCID 112184921-[4-(Trifluoromethyl)pyridin-2-yl]piperazineHCID 68596413(3S)-3-[(tert-butoxycarbonyl)amino]-1-(1-hydroxy-1-methylethyl)cyclopentanecarboxylic acid

Produkt 1

HCID 72573886tert-Butyl [3-(1-Hydroxy-1-methylethyl)-3-(4-[4-(trifluoromethyl)pyridin-2-yl]piperazin-1-ylcarbonyl)cyclopentyl]carbamateAusbeute 29,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a suspension of (3S)-3-[(tert-butoxycarbonyl)amino]-1-(1-hydroxy-1-methylethyl)cyclopentanecarboxylic acid (150 mg, 0.52 mmol) and 1-[4-(trifluoromethyl)pyridin-2-yl]piperazine (130 mg, 0.57 mmol) in methylene chloride (3 mL) under N2 was added triethylamine (0.16 g, 1.6 mol) and benzotriazol-1-yloxytris(dimethylamino)phosphonium hexafluorophosphate (0.25 g, 0.57 mmol). After being stirred at room temperature overnight, the reaction was quenched by saturated NaHCO3 solution and extracted with methylene chloride three times. The combined extracts were dried (MgSO4), filtered, concentrated and purified by flash column chromatography to yield the desired product (76 mg, 29%).

Aufarbeitung

  1. customthe reaction was quenched by saturated NaHCO3 solution
  2. extractionextracted with methylene chloride three times
  3. dry with materialThe combined extracts were dried (MgSO4)
  4. filtrationfiltered
  5. concentrationconcentrated
  6. custompurified by flash column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-60576e68f8f44084b25d80f60790c28d
Quelldatensatz
uspto-grants-2013_10
Patentnummer
US08563582B2

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