1-(2'-Bromo-5'-methoxybenzoyl)-2-methyl-3,4-dihydro-6,7-methylenedioxyisoquinolium iodide 在
sodium tetrahydroborate 作用下,
以
乙醇 为溶剂,
反应 4.0h,
以90%的产率得到erythro/threo-1-(2'-Bromo-5'-methoxy-α-hydroxybenzyl)-2-methyl-1,2,3,4-tetrahydro-6,7-methylenedioxyisoquinoline