dimethyl (1R,2S,3R,4S)-7-oxabicyclo[2.2.1]hept-5-ene-2,3-dicarboxylate

4-chloro-1-methylsulfanyl-2-nitrobenzene

3-甲氧基-5-甲基噻吩-2-羧酸甲酯

O,S,S-三甲基二硫代磷酸酯

dimethyl 2,6-dimethylbenzene-1,4-dicarboxylate