1,8-Diamino-2,3,6,7-tetrabromo-4,5-dihydroxy-anthraquinone 、
potassium o-aminobenzenethiolate 生成 25,28-dihydroxy-10,13-dithia-3,20-diazaheptacyclo[20.8.0.02,11.04,9.012,21.014,19.024,29]triaconta-1(22),2(11),4,6,8,12(21),14,16,18,24,26,28-dodecaene-23,30-dione