| abstract |
PROCEDURE FOR OBTAINING XANTHINE DERIVATIVES, OF FORMULA (I), IN WHICH R, R AND R MAY BE SEVERAL RADICALS, CONSISTING IN THE REACTION OF A COMPOUND OF FORMULA (II), IN THE PRESENCE OF BASES OR IN THE FORM OF THEIR SALTS, WITH AN ALCOHYLATING AGENT WHOSE ALCOHILIC CHAIN HAS 4-8 CARBON ATOMS, OF FORMULA (III), IN WHICH ONE OF R1, R2 OR R3 IS HYDROGEN AND THE OTHER TWO ARE ALCOHYL, R IS HYDROGEN OR METHYL, X IS A NUCLEOFILO GROUP, EY MAY BE SEVERAL RADICALS. THESE COMPOUNDS HAVE PHARMACOLOGICAL APPLICATIONS FOR THE TREATMENT OF OBSTRUCTIVE DISEASES OF THE RESPIRATORY TRACT. |