{(Z)-7-Iodo-1-[1-(4-methoxy-butyl)-2-oxo-1,2,5,6-tetrahydro-pyridin-3-ylmethyl]-hept-2-enyl}-carbamic acid tert-butyl ester 在
potassium tert-butylate 作用下,
以
四氢呋喃 为溶剂,
以85%的产率得到(Z)-8-[1-(4-Methoxy-butyl)-2-oxo-1,2,5,6-tetrahydro-pyridin-3-ylmethyl]-3,4,5,8-tetrahydro-2H-azocine-1-carboxylic acid tert-butyl ester