N4-[2-(2,5-difluorophenoxy)ethyl]-N6-methyl-3,4-dihydro-2H-thiochromene-4,6-diamine 1,1-dioxide hydrochloride 在
二氧化碳 作用下,
以
甲醇 为溶剂,
以50%的产率得到(4R)-N
4-[2-(2,5-difluorophenoxy)ethyl]-N
6-methyl-3,4-dihydro-2H-thiochromene-4,6-diamine 1,1-dioxide hydrochloride