34549-69-4
2-羟基-5-甲氧基-3-硝基苯甲醛
+
54747-68-1
2-ethyl-3-methyl-benzooxazolium, toluene-4-sulfonate
→
33442-78-3
6'-methoxy-3,3'-dimethyl-8'-nitrospiro[1,3-benzoxazole-2,2'-chromene]