4-(methylsulfonylmethyl)piperidine;hydrochloride

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: In a manner analogous to the method described in examples 8, (4S,5R)-2-(6-tert-butyl-4-ethoxy-pyridin-3-yl)-4,5-bis-(4-chloro-phenyl)-4,5-dimethyl-4,5-dihydro-imidazole-1-carbonyl chloride (example 51) was coupled with 4-methanesulfonylmethyl-piperidine hydrochloride to give the title compound. HR-MS (ES, m/z) calculated for C36H45N4O4SCl2 [(M+H)+] 699.2533, observed 699.2533.

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 4-Methanesulfonylmethyl-piperidine-1-carboxylic acid tert-butyl ester as white solid (6 g) was suspended in hydrochloric acid (4N solution in 1,4-dioxane) at 0° C. The ice bath was removed and the mixture was stirred at room temperature overnight. It was concentrated to give 4-methanesulfonylmethyl-piperidine hydrochloride as white solid (4.52 g). The ice bath was removed It was concentrated