Tetrahydrofuran → (trans)-Benzyl 4-(2-([1,2,4]triazolo[4,3-a]pyridin-3-yl)quinolin-8-yloxy)-3-fluoropiperidine-1-carboxylate

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Reaction Steps

Non-racemic (trans)-benzyl 3-fluoro-4-hydroxypiperidine-1-carboxylate (0.192 g, 0.757 mmol) was treated with 1.0 M KOtBu in THF (0.757 mL, 0.757 mmol) and stirred at ambient temperature for 15 minutes. 2-([1,2,4]Triazolo[4,3-a]pyridin-3-yl)-8-fluoro quinoline (0.200 g, 0.757 mmol) was added along with DMF (2.25 mL) and the mixture was stirred at 50° C. for 15 hours. The reaction was cooled and chromatographed on SiO2, eluting with a gradient of 2% NH4OH in isopropanol/methylene chloride. After concentration in vacuo, the desired product was isolated as a beige solid (0.306 g). MS APCI (+) m/z 498.1 (M+1) detected.

Provenance & Evidence