上游原料
4-bromophenylhydrosulfide; 4-bromobenzenethiol3-[(4-bromophenyl)sulfanyl]-3-methylbutyric acid6-bromo-2,2-dimethyl-2,3-dihydro-4H-thiochromen-4-one(4-methylphenyl)lithium6-bromo-2,2-dimethyl-4-(4-methylphenyl)-4-thiochromanol6-bromo-2,2-dimethyl-4-(4-methylphenyl)-2H-thiochromene2,2-dimethyl-4-(4-methylphenyl)-2H-thiochromene-6-carbaldehydeethyl 4-[1-(diethoxyphosphoryl)-3,3-dimethoxypropyl]benzoateethyl 4-[(E)-1-(2,2-dimethoxyethyl)-2-[2,2-dimethyl-4-(4-methylphenyl)-2H-thiochromen-6-yl]ethenyl]benzoateethyl 4-[2,2-dimethyl-4-(4-methylphenyl)-2H-benzo[g]thiochromen-7-yl]benzoate3-methyl-2-butenoic acid