diethyl 3,3'-((disulfanediylbis(2,1-phenylene))bis(azanediyl))bis(3-oxopropanoate)

3-氧代-3,4-二氢-2H-苯并[b][1,4]噻嗪-2-羧酸乙酯

甲硫醇

丁硫醇