(-)-(1'R,2'R,5'R)-6'-allyl-8'-(4-methoxybenzyl)-3,4-dihydrospiro[2-benzopyran-1,2'-6',8'-diazabicyclo[3.2.2]nonane]-7',9'-dione 在
lithium aluminium tetrahydride 作用下,
以
四氢呋喃 为溶剂,
反应 16.17h,
以22%的产率得到(+)-(1'S,2'R,5'R)-6'-allyl-8'-(4-methoxybenzyl)-3,4-dihydrospiro[2-benzopyran-1,2'-6',8'-diazabicyclo[3.2.2]nonane]