Methyl chloroformate → Methyl 4-(3-((1-(quinolin-2-yl)azetidin-3-yl)oxy)pyrazin-2-yl)piperidine-1-carboxylate

HRID 2207829

Reaktionsgleichung

Reaktionsgleichung von HRID 2207829
Cl.[NH:2]1[CH2:7][CH2:6][CH:5]([C:8]2[C:9]([O:14][CH:15]3[CH2:18][N:17]([C:19]4[CH:28]=[CH:27][C:26]5[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=5)[N:20]=4)[CH2:16]3)=[N:10][CH:11]=[CH:12][N:13]=2)[CH2:4][CH2:3]1.CCN(CC)CC.[C:36](Cl)(=[O:39])[O:37][CH3:38]>C(Cl)Cl>[N:20]1[C:21]2[C:26](=[CH:25][CH:24]=[CH:23][CH:22]=2)[CH:27]=[CH:28][C:19]=1[N:17]1[CH2:18][CH:15]([O:14][C:9]2[C:8]([CH:5]3[CH2:6][CH2:7][N:2]([C:36]([O:37][CH3:38])=[O:39])[CH2:3][CH2:4]3)=[N:13][CH:12]=[CH:11][N:10]=2)[CH2:16]1

Komponenten

5

Edukt 3

HCID 6586Methyl chloroformateHCID 8471TriethylamineHCID 674773972-(3-((3-(Piperidin-4-yl)pyrazin-2-yl)oxy)azetidin-1-yl)quinoline hydrochloride

Produkt 1

HCID 58547944Methyl 4-(3-((1-(quinolin-2-yl)azetidin-3-yl)oxy)pyrazin-2-yl)piperidine-1-carboxylateAusbeute 79,3 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

To a solution of 2-(3-((3-(piperidin-4-yl)pyrazin-2-yl)oxy)azetidin-1-yl)quinoline hydrochloride (see PREPARATION P4.1; 100 mg, 0.29 mmol) in dry DCM (10 mL) was added Et3N (1 mL). The reaction mixture was cooled to 0° C. with an ice bath, and methyl carbonochloridate (54 mg, 0.58 mmol) was added dropped to the reaction mixture. After 1 hour, the reaction mixture was warmed to RT, and stirred overnight. Then the reaction mixture was washed with brine, dried over Na2SO4, filtered, and concentrated under vacuum to give the crude product. The crude product was purified via flash chromatography on silica gel (20% to 45% EtOAc in petroleum ether) to give methyl 4-(3-((1-(quinolin-2-yl)azetidin-3-yl)oxy)pyrazin-2-yl)piperidine-1-carboxylate (93 mg, 0.23 mmol, 79% yield) as a white solid. ESI-MS (M+1): 404 calc. for C23H25N5O2 403.

Aufarbeitung

  1. additiondropped to the reaction mixture
  2. temperaturethe reaction mixture was warmed to RT
  3. washThen the reaction mixture was washed with brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated under vacuum
  7. customto give the crude product
  8. customThe crude product was purified via flash chromatography on silica gel (20% to 45% EtOAc in petroleum ether)

Quellen und Nachweise

ORD-Eintrag
ord-870f852198a64757b5570af2e16d0423
Quelldatensatz
uspto-grants-2016_06
Patentnummer
US09376450B2

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