New derivatives of piperazine useful as drugs and processes for their preparation

RESPECT THE INVENTION OF NEW PIPERAZINE DERIVATIVES USEFUL AS DRUGS AND METHOD OF PREPARATION; THE NOVEL PIPERAZINE MEET THE NEXT GENERAL FORMULA I: (CF DRAWING IN BOPI) X REPRESENTS OR ATOM HYDROGEN OR HALOGEN, RADICAL ALCOXY, CARBOXY or alkoxycarbonyl OR RADICAL RCO R REPRESENTS OR aLKYL RADICAL WITH 1 TO 4 CARBON ATOMS, R REPRESENTS AN ATOM HYDROGEN OR aLKYL RADICAL AND R REPRESENTS AN ATOM HYDROGEN OR aLKYL RADICAL; THEREOF ARE PARTICULARLY USEFUL AS immunopotentiators FOR TREATING ARTHRITIS CHRONIC ARTHRITIS AND CANCER IMMUNOTHERAPY; METHODS OF PREPARATION ALSO DESCRIBED.