Sodium Bicarbonate → HCID 22141292, Verbindung

A solution of 1-hydroxybenzotriazole monohydrate (224 mg, 1.46 mmol) and 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (306 mg, 1.60 mmol) in N,N-dimethylformamide (10 ml) was added to (E)-3-(2-pyridinyl)-2-propenoic acid (197 mg, 1.32 mmol). After stirring at room temperature for 15 min, the mixture was added to the hydrochloride salt of N-[3-(6-methyl-3-azabicyclo[3.1.0]hex-6-yl)phenyl]methanesulfonamide (Preparation 53, 404 mg, 1.32 mmol) and sodium hydrogen carbonate (220 mg, 2.64 mmol). The reaction mixture was stirred at room temperature for overnight and then water (20 ml) and dichloromethane (10 ml) were added. The biphasic mixture was separated by filtering through a Whatman Microfiltration Device Filter Tube, and the resulting organic extract was concentrated using a stream of nitrogen to afford 377 mg of a crude dark brown oil. This was purified by chromatography using a Biotage Flash 40S™ cartridge packed with silica gel (40 g) eluting with dichloromethane: ethanol:0.880 ammonia (100:2:1) to afford the title compound as a white solid (172 mg, 33%).

1. stirringThe reaction mixture was stirred at room temperature for overnight
2. customThe biphasic mixture was separated
3. filtrationby filtering through a Whatman Microfiltration Device
4. filtrationFilter Tube
5. extractionthe resulting organic extract
6. concentrationwas concentrated
7. customto afford 377 mg of a crude dark brown oil
8. customThis was purified by chromatography
9. washeluting with dichloromethane

ORD-Eintrag

ord-489145e5aeec47859946c658c1ac0bc1

Quelldatensatz

uspto-grants-2001_11

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US06313312B1