[(2R,3R)-5,7-bis[[tert-butyl(dimethyl)silyl]oxy]-2-[3,4,5-tris[[tert-butyl(dimethyl)silyl]oxy]phenyl]-3,4-dihydro-2H-chromen-3-yl] N-(4-methylphenyl)carbamate 在
氢氟酸 作用下,
生成
(2R,3R)-5,7-dihydroxy-2-(3,4,5-trihydroxyphenyl)chroman-3-yl p-tolylcarbamate