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

HRID 454933

Reaktionsgleichung

Reaktionsgleichung von HRID 454933
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-f6ef80d0d5f642449e5842182a20aff2
Quelldatensatz
uspto-grants-2013_07
Patentnummer
US08497265B2

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