1-(tert-Butoxycarbonyl)-4-(p-toluenesulfonyloxy)piperidine → 5-(3,4-diethoxyphenyl)-4,4-dimethyl-2-piperidin-4-yl-2,4-dihydro-3H-pyrazol-3-one

Participants

Reaction Steps

Prepared analogously as described for the example B1 (Alternative 1) using 5-(3,4-diethoxyphenyl)-4,4-dimethyl-2,4-dihydro-3H-pyrazol-3-one (compound C2) and tert-butyl 4-(Toluene-4-sulfonyloxy)piperidine-1-carboxylate (compound E1) as starting compounds resulting in the hydrochloride salt of the title compound. (compound B2*HCl)

Provenance & Evidence