The first syntheses of the adducts formed in the reactions of o-quinone metabolites of carcinogenic polycyclic aromatic hydrocarbons (BPQ and BAQ) at 2'-deoxyadenosine and 2'- deoxyguanosine sites in DNA are reported. These syntheses entail Pd-catalyzed coupling of protected amine derivatives of catechols with suitably protected halopurine analogues of 2'- deoxyribonucleosides.