Hydrochloric Acid → HCID 66665331, compound

Participants

Reaction Steps

[1-(4-{7-[2-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-ethoxy]-3-phenyl-imidazo[1,2-a]pyrimidin-2-yl}-phenyl)-cyclobutyl]-carbamic acid tert-butyl ester (530 mg) was dissolved in methanol/DCM (1.3 mL/2.1 mL), treated with HCl in dioxane (4.08 mL of a 4M solution) and the mixture stirred overnight at rt. The reaction mixture was poured onto ice, made alkaline with 2N aqueous sodium hydroxide and extracted with EtOAc. The combined organic phases were washed with saturated aqueous sodium chloride, dried and concentrated in vacuo to give the crude title product as a yellow oil. Purification was achieved by trituration at 0° C. with diisopropyl ether. The resulting precipitate was filtered and dried to give the title compound as a solid (390 mg).

Provenance & Evidence