反应详情

Compounds of formula IX may be prepared according to Scheme V. Alkylation of the secondary amine in a compound of formula VII or formula VIIa with 2-(N-Boc amino)ethyl chloride (prepared according to the procedure of Tanaka (Chem. Pharm. Bull. 1988, 36, 3125) in the presence of Et3N in a solvent such as CH2Cl2 or DMF gives the N-Boc ethylamine derivative of formula XI. Removal of the Boc group is accomplished by treatment with TFA in a solvent such as CH2Cl2 to give naphthyl-8-azabicyclo[3.2.1]octene/naphthyl-8-azabicyclo[3.2.1]octane of formula IX.