上游原料
Meldrum's acid; 2,2-dimethyl-1,3-dioxane-4,6-dione；Malonic acid cyclic isopropylidene esterpropionaldehydepropanoyl chloride; propionyl chloride2,3,5,6-Tetrachloro-1,4-benzoquinone; 2,3,5,6-Tetrachlorobenzo-1,4-quinone; p-Chloranil2,2-dimethyl-5-propionyl-1,3-dioxane-4,6-dionepropylhydrosulfide; 1-propanethiolS-propyl 3-oxopentanethioatepropyl 3-(3-chlorophenyl)-3-oxopropanoatepropyl (E)-3-amino-3-(3-chlorophenyl)-2-propenoatepropyl 2-(3-chlorophenyl)-4,6-diethyl-5-[(propylsulfanyl)carbonyl]-1,4-dihydro-3-pyridinecarboxylate
