Hydrochloric Acid → 1-((2-(5-Bromo-3-(4-fluorophenoxy)pyridin-2-ylamino)thiazol-4-yl)methyl)piperazin-2-one

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Reaction Steps

In a 20 mL scintillation vial equipped with magnetic stirrer tert-butyl 4-((2-(5-bromo-3-(4-fluorophenoxy)pyridin-2-ylamino)thiazol-4-yl)methyl)-3-oxopiperazine-1-carboxylate (0.020 g, 0.035 mmol) was dissolved in 1 ml of CH2Cl2 and 4M HCl in dioxane (0.50 mL, 2.0 mmol) was added. The resulting mixture was agitated for 2 hours, diluted with 5 mL of ether and the solvent was decanted off. The residue was dried to provide the title compound (0.012 g, 73% yield). 1H NMR (d6-DMSO) δ 3.25-3.78 (m, 6H), 6.99 (s, 1H), 7.28-7.36 (m, 4H), 8.23 (s, 1H), 8.34 (s, 1H), 10.24 (s, 2H).

Provenance & Evidence