1'-[2-(1-pyrrolidinyl)-acetyl]-spiro[bicyclo[2.2.2] octane-2,3'-piperidine] 、
1'-[2-(benzylmethylamino)-acetyl]-spiro[bicyclo[2.2.2] octane-2,3'-piperidine] 、 1'-(2-piperidinoacetyl)-spirobicyclo[2.2.2]octane-2,3'-piperidine 以
甲醇 为溶剂,
生成 1'-(2-piperidinoethyl)-spiro[bicyclo[2.2.2]octane-2,3'-piperidine]-dihydrochloride