C(OC([N:8]1[CH2:13][CH2:12][C:11]([C:24]#[N:25])([C:14]2[CH:23]=[CH:22][C:21]3[C:16](=[CH:17][CH:18]=[CH:19][CH:20]=3)[CH:15]=2)[CH2:10][CH2:9]1)=O)(C)(C)C.[ClH:26].O1CCOCC1>>[ClH:26].[C:24]([C:11]1([C:14]2[CH:23]=[CH:22][C:21]3[C:16](=[CH:17][CH:18]=[CH:19][CH:20]=3)[CH:15]=2)[CH2:12][CH2:13][NH:8][CH2:9][CH2:10]1)#[N:25]Combine 1-tert-butoxycarbonyl-4-cyano-4-(naphth-2-yl)-piperidine (3.12 mmol) and HCl in dioxane (10 mL, 40 mmol, 4N, 13 eq.) at ambient temperature for 1 h. Concentrate the solvent in vacuo and dry under high vacuum to give the title compound.
Wird geladen…