2-Chlorobenzothiazole → N-(3-(3-chloropyrazin-2-yloxy)cyclobutyl)benzo[d]thiazol-2-amine
Reaktionsgleichung
Cl.[Cl:2][C:3]1[C:4]([O:9][CH:10]2[CH2:13][CH:12]([NH2:14])[CH2:11]2)=[N:5][CH:6]=[CH:7][N:8]=1.Cl[C:16]1[S:17][C:18]2[CH:24]=[CH:23][CH:22]=[CH:21][C:19]=2[N:20]=1.CCN(C(C)C)C(C)C>CN1C(=O)CCC1>[Cl:2][C:3]1[C:4]([O:9][CH:10]2[CH2:11][CH:12]([NH:14][C:16]3[S:17][C:18]4[CH:24]=[CH:23][CH:22]=[CH:21][C:19]=4[N:20]=3)[CH2:13]2)=[N:5][CH:6]=[CH:7][N:8]=1Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 180 °C
Versuchsvorschrift
A mixture of 3-(3-chloro-pyrazin-2-yloxy)-cyclobutylamine hydrochloride (1.2 g, 6.28 mmol), 2-chloro-benzothiazole (purchased from ALDRICH™) (1.07 g, 6.28 mmol) and DIEA (1.8 g, 12.56 mmol) in NMP (12 mL) was heated to 180° C. for 2 hours in microwave. The reaction mixture was extracted with EtOAc (40 mL) and water, the organic phase was washed with brine and dried over Na2SO4. The organic layers were concentrated and purified by column chromatography on silica gel to give N-(3-((3-chloropyrazin-2-yl)oxy)cyclobutyl)benzo[d]thiazol-2-amine (3.0 g, 6 mmol, 95.5%). ESI-MS (M+1): 333 calc. for C15H13ClN4OS 332.
Aufarbeitung
- extractionThe reaction mixture was extracted with EtOAc (40 mL) and water
- washthe organic phase was washed with brine
- dry with materialdried over Na2SO4
- concentrationThe organic layers were concentrated
- custompurified by column chromatography on silica gel
Quellen und Nachweise
- ORD-Eintrag
- ord-b37da26e7ec1446abda4dc122919990c
- Quelldatensatz
- uspto-grants-2015_02
- Patentnummer
- US08952037B2
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