Triphenylphosphine → Tert-butyl 4-(6-(1-(4-(trifluoromethyl)phenyl)piperidin-4-yloxy)benzo[d]thiazole-2-carboxamido)piperidine-1-carboxylate

HRID 1626338Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1626338
[OH:1][C:2]1[CH:26]=[CH:25][C:5]2[N:6]=[C:7]([C:9]([NH:11][CH:12]3[CH2:17][CH2:16][N:15]([C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])[CH2:14][CH2:13]3)=[O:10])[S:8][C:4]=2[CH:3]=1.N(C(OC(C)C)=O)=NC(OC(C)C)=O.[F:41][C:42]([F:57])([F:56])[C:43]1[CH:48]=[CH:47][C:46]([N:49]2[CH2:54][CH2:53][CH:52](O)[CH2:51][CH2:50]2)=[CH:45][CH:44]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>C1(C)C=CC=CC=1>[F:57][C:42]([F:41])([F:56])[C:43]1[CH:44]=[CH:45][C:46]([N:49]2[CH2:54][CH2:53][CH:52]([O:1][C:2]3[CH:26]=[CH:25][C:5]4[N:6]=[C:7]([C:9]([NH:11][CH:12]5[CH2:13][CH2:14][N:15]([C:18]([O:20][C:21]([CH3:22])([CH3:23])[CH3:24])=[O:19])[CH2:16][CH2:17]5)=[O:10])[S:8][C:4]=4[CH:3]=3)[CH2:51][CH2:50]2)=[CH:47][CH:48]=1

Komponenten

6

Edukt 4

HCID 11776TriphenylphosphineHCID 75555Diisopropyl diazene-1,2-dicarboxylateHCID 220976741-[4-(Trifluoromethyl)phenyl]piperidin-4-olHCID 57951061Tert-butyl 4-(6-hydroxybenzo[d]thiazole-2-carboxamido)piperidine-1-carboxylate

Produkt 1

HCID 57951083Tert-butyl 4-(6-(1-(4-(trifluoromethyl)phenyl)piperidin-4-yloxy)benzo[d]thiazole-2-carboxamido)piperidine-1-carboxylateAusbeute 86 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1140TolueneLösungsmittel

Versuchsvorschrift

To a stirred solution of tert-butyl 4-(6-hydroxybenzo[d]thiazole-2-carboxamido)piperidine-1-carboxylate (0.20 g, 0.54 mmol) in toluene (4 mL) at room temperature was added diisopropyl azodicarboxylate (0.13 g, 0.64 mmol), 1-(4-(trifluoromethyl)phenyl)-piperidin-4-ol (0.13 g, 0.54 mmol), and triphenylphosphine (0.17 g, 0.64 mmol). The mixture was stirred at room temperature overnight and then concentrated under reduced pressure. The residue obtained was purified by flash chromatography (silica gel, ethyl acetate/hexanes=3/7) to afford tert-butyl 4-(6-(1-(4-(trifluoromethyl)phenyl)piperidin-4-yloxy)benzo[d]thiazole-2-carboxamido)piperidine-1-carboxylate (compound 14) as a white solid (0.28 g, 86%). 1H-NMR (CDCl3, 300 MHz): δ 7.95 (m, 1H), 7.48 (m, 3H), 7.27 (m, 1H), 7.17 (m, 1H), 6.97 (m, 2H), 4.62 (m, 1H), 4.12 (m, 3H), 3.61 (m, 2H), 3.29 (m, 2H), 2.95 (m, 2H), 2.06 (m, 6H), 1.56 (m, 2H), 1.41 (s, 9H) ppm; MS (ESI): 605.5 (M+1).

Aufarbeitung

  1. concentrationconcentrated under reduced pressure
  2. customThe residue obtained
  3. customwas purified by flash chromatography (silica gel, ethyl acetate/hexanes=3/7)

Quellen und Nachweise

ORD-Eintrag
ord-39ef80c5cf45475fa25c8fd344144030
Quelldatensatz
uspto-grants-2014_07
Patentnummer
US08785449B2

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