O-2-(diethylcarbamoyl)-4-chlorophenyl diethylcarbamate

ethyl 5-chloro-8-hydroxy-3-methyl-1-oxo-3,4-dihydroisochromene-7-carboxylate

ethyl 8-hydroxy-3-methyl-1-oxoisochroman-7-carboxylate

5-氯-3,4-二氢-8-羟基-3-甲基-1-氧代-1H-2-苯并吡喃-7-羧酸甲酯