title: Thiophen derivatives. XV. 3- and 4-hydroxythianaphthen in the synthesis of some thia-derivatives of polycyclic carcinogens.
mesh_terms: D002273:Carcinogens; D055598:Chemical Phenomena; D002621:Chemistry; D011083:Polycyclic Compounds; D013876:Thiophenes
chemical_list: D002273:Carcinogens; D011083:Polycyclic Compounds; D013876:Thiophenes