(2-methyl-4,5,6,7-tetrahydro-1,3-benzothiazol-5-yl)methyl 4-methylbenzenesulfonate

甲胺

3-羟基苯甲酸乙酯

3-氧代环己烷甲酸乙酯

3-羟基环己烷羧酸乙酯