Diisopropylethylamine → HCID 178521020, Verbindung

3,3-Difluoroazetidine (33 mg, 0.2 mmol) was added to a mixture of (R)-1-(2-(1-(4-chloro-1H-pyrazol-1-yl)cyclopropyl)-3H-imidazo[4,5-b]pyridin-5-yl)piperidine-3-carboxylic acid (100 mg, 0.25 mmol), diisopropylethylamine (0.1 mL, 0.77 mmol) and O-(7-azabenzotriazol-1-yl)-N,N,N′,N′,-tetramethyluronium hexafluorophosphate (HATU) (118 mg, 0.31 mmol) in anhydrous dichloromethane (5 mL) at room temperature. The reaction mixture was stirred for 2 h, then partitioned between dichloromethane and water. The organics were dried over sodium sulfate, filtered and concentrated under reduced pressure. The crude material was purified via preparative TLC to afford the title compound (40 mg, 43% yield). MS (ES+) (M+H) 462.2; LCMS retention time 2.163 minutes (Method N1). 1H NMR (300 MHz, CDCl3) δ 1.17-1.39 (m, 1H), 1.71-2.24 (m, 7H), 2.35-2.58 (m, 1H), 2.83-3.13 (m, 2H), 4.04-4.78 (m, 6H), 6.63 (d, 1H), 7.62 (s, 2H), 7.69-7.80 (m, 1H), 9.15 (br s, 1H).

1. custompartitioned between dichloromethane and water
2. dry with materialThe organics were dried over sodium sulfate
3. filtrationfiltered
4. concentrationconcentrated under reduced pressure
5. customThe crude material was purified via preparative TLC

ORD-Eintrag

ord-044775a57c664b9392b07addf661403b

Quelldatensatz

uspto-grants-2016_03

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US09296745B2