ethyl 8-ethyl-2,3-di(phenylmethyl)-2-azabicyclo[2.2.2]oct-7-ene-6-carboxylate hydrochloride 以
甲苯 为溶剂,
以was obtained from 1,2-dihydro-N,2-di(phenylmethyl)-4-ethylpyridine of Example 3(b), toluene (1400 mL) and ethyl acrylate (154 mL, 1.4 mol)的产率得到1,2-dihydro-N,2-di(phenylmethyl)-4-ethylpyridine