Hydrochloric Acid → 6-(4-Oxospiro[chroman-2,4'-piperidin]-6-yl)nicotinamide dihydrochloride

참여 물질

반응 단계

To a suspension of tert-butyl 6-(5-carbamoylpyridin-2-yl)-4-oxospiro[chroman-2,4′-piperidine]-1′-carboxylate in dioxane (125 ml) was added 4N HCl in dioxane (125 ml) and the mixture was stirred for 18 h. After Et2O was added to the mixture, the resulted precipitate was collected by aeration, washed with Et2O to give intended compound as a colorless solid.

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