{4-[5-(cyclopropyl-methyl-amino)-8,8-dimethyl-4-(2-trimethylsilanyl-ethoxymethoxy)-5,6,7,8-tetrahydro-naphthalen-2-ylethynyl]-phenyl}-acetic acid methyl ester 在
硫酸 作用下,
以
四氢呋喃 、
甲醇 为溶剂,
以87%的产率得到{4-[5-(cyclopropyl-methyl-amino)-4-hydroxy-8,8-dimethyl-5,6,7,8-tetrahydro-naphthalen-2-ylethynyl]-phenyl}-acetic acid methyl ester