Abstract: | The reaction of 5,6‐diamino‐4‐hydroxy‐2‐mercaptopyrimidine with mono‐ and α,ω‐dihalocompounds has been reinvestigated. Alkyl derivatives of 5‐amino group, not previously described, have been obtained as reaction products. A comparison with the reactivity of 6‐amino‐4‐hydroxy‐2‐mercaptopyrimidine has been also performed. |