N-methyl-2-pyrrolidone → 2-(4-Methylpyridin-3-yl)-7-[5-(trifluoromethyl)pyridin-2-yl]-2,7-diazaspiro[4.5]decan-1-one

Participants

Reaction Steps

A mixture of ethyl 3-{2-[(4-methylpyridin-3-yl)amino]ethyl}piperidine-3-carboxylate trihydrochloride (42.8 mg, 0.000107 mol), 2-chloro-5-(trifluoromethyl)pyridine (23 mg, 0.00013 mol) and N,N-diisopropylethylamine (0.056 mL, 0.00032 mol) in N-methylpyrrolidinone (0.8 mL, 0.008 mol) was irradiated with microwaves to 180° C. for 20 min. Sodium hydride (30.0 mg) was then added to the above solution and the mixture was stirred overnight. The product was purified by prep-HPLC. LC-MS: 391.2 (M+H)+.

Provenance & Evidence