| abstract |
NEW DERIVATIVES OF THE PIRACINA HAVE THE FORMULA I IN WHICH: R IS A HYDROGEN ATOM OR A LOWER RENTAL GROUP; R1 IS A LOWER ALCOXIDE GROUP, A LOWER RENT GROUP OR A HYDROXIDE GROUP; R3 IS A LOWER RENT GROUP, A FENILE GROUP, A LOWER FENIL-ALKY GROUP, A LOWER ALKENYL GROUP OR A LOWER INDOLY-RENTAL GROUP; R2 IS A LOWER FENYLALKYL GROUP THAT MAY HAVE, ON THE PHENYL RING, BETWEEN 1 AND 3 SELECTED SUBSTITUTES BETWEEN THE GROUP THAT CONSISTS OF A LOWER ALKOXIDE GROUP, A LOWER FENYLALCOXIDE GROUP; A GROUP OF THE FOLLOWING FORMULA IN WHICH R4 AND R5 HAVE THE MEANINGS GIVEN IN THE DESCRIPTION. IN THE SAME WAY PROCESSES ARE PRESENTED TO PREPARE THE DERIVATIVES OF PIRACINA. THESE COMPOUNDS MAY BE USED IN PHARMACEUTICAL COMPOSITIONS TO INHIBIT RADICAL SUPEROXIDE (O2-) ACTIVITY AND TO AVOID AND TREAT NEPHRITIS. |