7-t-butyl-5-[isopropyl-(4-hydroxy-phenyl)-amino]-3,3,6-trimethyl-2,3-dihydro-benzofuran 、
2-[N,正双(三氟甲烷烷磺酰)氨基]-5-氯吡啶 在
4-二甲氨基吡啶 作用下,
以
二氯甲烷 为溶剂,
以the title compound (0.032 g, 77%) was obtained after flash column chromatography的产率得到7-t-butyl-5-[isopropyl-(4-trifluoromethanesulfonyloxy-phenyl)-amino]-3,3,6-trimethyl-2,3-dihydro-benzofuran