Trifluoroacetic acid → 1-[2-(4-Aminopiperidin-1-yl)ethyl]-2-oxo-1,2-dihydroquinoline-7-carbonitrile

HRID 255170Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 255170
[C:1]([C:3]1[CH:12]=[C:11]2[C:6]([CH:7]=[CH:8][C:9](=[O:29])[N:10]2[CH2:13][CH2:14][N:15]2[CH2:20][CH2:19][CH:18]([NH:21]C(=O)OC(C)(C)C)[CH2:17][CH2:16]2)=[CH:5][CH:4]=1)#[N:2].FC(F)(F)C(O)=O>ClCCl>[NH2:21][CH:18]1[CH2:19][CH2:20][N:15]([CH2:14][CH2:13][N:10]2[C:11]3[C:6](=[CH:5][CH:4]=[C:3]([C:1]#[N:2])[CH:12]=3)[CH:7]=[CH:8][C:9]2=[O:29])[CH2:16][CH2:17]1

Komponenten

4

Edukt 2

HCID 6422Trifluoroacetic acidHCID 60200429tert-butyl 1-(2-(7-cyano-2-oxoquinolin-1(2H)-yl)ethyl)piperidin-4-ylcarbamate2×

Produkt 1

HCID 602009201-[2-(4-Aminopiperidin-1-yl)ethyl]-2-oxo-1,2-dihydroquinoline-7-carbonitrile

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

A solution of tert-butyl {1-[2-(7-cyano-2-oxoquinolin-1(2H)-yl)ethyl]piperidin-4-yl}carbamate (Intermediate 15) (6.57 g, 16.57 mmol) in dichloromethane (100 mL) was treated with trifluoroacetic acid (40 mL) at 0° C. for 30 minutes. The solvent was removed under reduced pressure and the residue codistilled once with dichloromethane, then taken up in dichloromethane (200 mL) and washed with saturated sodium hydrogencarbonate solution (50 mL, pH adjusted to 10 with sodium hydroxide). The aqueous phase was back-extracted three times with dichloromethane (3×100 mL) and dried over sodium sulfate. The solvent was removed under reduced pressure to give the product as off-white solid, 5 g, mp 138° C.

Aufarbeitung

  1. customThe solvent was removed under reduced pressure
  2. washwashed with saturated sodium hydrogencarbonate solution (50 mL
  3. extractionThe aqueous phase was back-extracted three times with dichloromethane (3×100 mL)
  4. dry with materialdried over sodium sulfate
  5. customThe solvent was removed under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-075e8cfd352c46e18ccca0a8b86d0653
Quelldatensatz
uspto-grants-2011_01
Patentnummer
US07875715B2

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