Heterocyclic analogs of 5,12-naphthacenequinone 6. Synthesis of 4,11-dimethoxy derivatives of anthra-[2,3-b]thiophene-5,10-dione and anthra[2,3-d]isothiazole-5,10-dione
Heterocyclic analogs of 5,12-naphthacenequinone 6. Synthesis of 4,11-dimethoxy derivatives of anthra-[2,3-b]thiophene-5,10-dione and anthra[2,3-d]isothiazole-5,10-dione