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Trifluoroacetic acid → (S)-methyl 5-(4-chloro-2-cyanophenoxy)-2-methyl-6-(1-(piperidin-4-yl)-1H-pyrazol-4-yl)-3,4-dihydroquinoline-1(2H)-carboxylate

HRID 1051620
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1051620
FC(F)(F)C(O)=O.C(OC([N:15]1[CH2:20][CH2:19][CH:18]([N:21]2[CH:25]=[C:24]([C:26]3[C:27]([O:41][C:42]4[CH:47]=[CH:46][C:45]([Cl:48])=[CH:44][C:43]=4[C:49]#[N:50])=[C:28]4[C:33](=[CH:34][CH:35]=3)[N:32]([C:36]([O:38][CH3:39])=[O:37])[C@@H:31]([CH3:40])[CH2:30][CH2:29]4)[CH:23]=[N:22]2)[CH2:17][CH2:16]1)=O)(C)(C)C>ClCCl>[Cl:48][C:45]1[CH:46]=[CH:47][C:42]([O:41][C:27]2[C:26]([C:24]3[CH:23]=[N:22][N:21]([CH:18]4[CH2:19][CH2:20][NH:15][CH2:16][CH2:17]4)[CH:25]=3)=[CH:35][CH:34]=[C:33]3[C:28]=2[CH2:29][CH2:30][C@H:31]([CH3:40])[N:32]3[C:36]([O:38][CH3:39])=[O:37])=[C:43]([C:49]#[N:50])[CH:44]=1
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Komponenten

4

Edukt 2

HCID 6422Trifluoroacetic acidHCID 118076346(S)-methyl 6-(1-(1-(tert-butoxycarbonyl)piperidin-4-yl)-1H-pyrazol-4-yl)-5-(4-chloro-2-cyanophenoxy)-2-methyl-3,4-dihydroquinoline-1(2H)-carboxylate

Produkt 1

HCID 118076488(S)-methyl 5-(4-chloro-2-cyanophenoxy)-2-methyl-6-(1-(piperidin-4-yl)-1H-pyrazol-4-yl)-3,4-dihydroquinoline-1(2H)-carboxylateAusbeute 86,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344
Dichloromethane
Lösungsmittel

Versuchsvorschrift

Trifluoroacetic acid (0.5 mL, 6.49 mmol) was added to a solution of (S)-methyl 6-(1-(1-(tert-butoxycarbonyl)piperidin-4-yl)-1H-pyrazol-4-yl)-5-(4-chloro-2-cyanophenoxy)-2-methyl-3,4-dihydroquinoline-1(2H)-carboxylate (0.057 g, 0.094 mmol) in dichloromethane (2.0 mL) and the reaction mixture stirred at rt for 1.5 h. The reaction mixture was concentrated and the residue was partitioned between dichloromethane and saturated aqueous sodium bicarbonate solution. The organic phase was separated, dried over anhydrous sodium sulfate, filtered, and concentrated to afford (S)-methyl 5-(4-chloro-2-cyanophenoxy)-2-methyl-6-(1-(piperidin-4-yl)-1H-pyrazol-4-yl)-3,4-dihydroquinoline-1(2H)-carboxylate (0.041 g, 86%) as an off-white solid. 1H NMR (300 MHz, DMSO-d6) δ ppm 1.01-1.09 (m, 4H), 1.49-1.79 (m, 4H), 1.80-2.07 (m, 4H), 2.52-2.63 (m, 2H), 2.99 (br d, J=12.31 Hz, 2H), 3.72 (s, 3H), 4.03-4.23 (m, 1H), 4.45-4.70 (m, 1H), 6.44 (br d, J=9.09 Hz, 1H), 7.47-7.64 (m, 3H), 7.67 (s, 1H), 7.95 (s, 1H), 8.10 (d, J=2.35 Hz, 1H). MS (ESI, pos. ion) m/z 506 [M+H]+.

Aufarbeitung

  1. concentrationThe reaction mixture was concentrated
  2. customthe residue was partitioned between dichloromethane and saturated aqueous sodium bicarbonate solution
  3. customThe organic phase was separated
  4. dry with materialdried over anhydrous sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-d2e31afe1bfe4bbe829c01049565aee1
Quelldatensatz
uspto-grants-2016_07
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09388161B2

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