| abstract |
PROCEDURE FOR THE PREPARATION OF 5,6,7-8-TETRAHIDROPIRAZOLO (3,4-B) (1,5) DIAZEPIN-1H, 4H-5,7 DIONAS OF GENERAL FORMULA (I). WHERE R1, R2 AND R3 CAN BE HYDROGEN OR DIFFERENT TYPES OF RADICALS, R4 IS HYDROGEN. IT CONSISTS OF CONDENSING A COMPOUND OF GENERAL FORMULA (II), WITH AN ACTIVATED DERIVATIVE OF MALONIC ACID SUCH AS MALONIC ACID DIHALOGENIDE, CARBON SUBOXIDE, MELDRUMIC ACID. THESE COMPOUNDS ARE APPLICABLE AS AUXIOLITIC AND ANTI-CONFUSION AGENTS. *FORMULA* |