Purines, pyrimidines, and condensed systems based on these compounds. 13. Transformation of fervenuli-1-oxide to 8-alkylaminotheophyllines under the action of alkylamines
Fervenulin-1-oxide undergoes reactions with secondary alkylamines in which the triazine ring is ruptured and 8-alkylaminotheophyllines are formed. The final product of the interaction of fervenulin-1-oxide with primary amines or with liquid ammonia is 1,3-dimethyl-5-imino-6-hydroximinouracil.