Abstract Two thiazolodiazines were prepared from the corresponding N- diazinylcarboxamides by use of Lawesson's reagent. Two N-diazinylthiocarboxamides were obtained from amino derivatives by reaction with methyl phenyldithiocarboxylate. The metalation of these four compounds was studied and the thiazolodiazines could be functionalized.
![2-tert-butyl-[1,3]thiazolo[4,5-b]pyrazine Structure](https://image.chemsrc.com/caspic/339/502169-80-4.png)