methyl (3aR,7R,7aS)-7-hydroxy-2,2-dimethyl-3a,6,7,7a-tetrahydrobenzo[d][1,3]dioxole-5-carboxylate

methyl 2,3,4-tribromo-5-hydroxybenzoate

乙酸银

methyl 5-hydroxycyclohexa-1,3-diene-1-carboxylate

3-甲氧基苯甲酸