PIPERIDINE DIONE DERIVATIVES WITH A MYOCARDIUM PROTECTING AND ANTIARRHYTMIC ACTIVITY, PROCESS FOR THEIR PREPARATION AND MEDICINES CONTAINING THEM

摘要

The present invention relates to derivatives of piperidinedione of formula: (I) in which R is alkyl or forms with N a possibly substituted morpholino or piperidino group, n=2 or 3, R1, R2, R3 and R4 represent H or lower alkyl; R3 and R4 taken together may represent (CH2)m where m=4 or 5 and R2 and R3 taken together may represent (CH2)p where p=3 or 4 and in this case R1 and R4=H, R5 is H or alkyl. It also relates to a process for manufacturing the product of formula (I) and to the drugs containing a product of formula (I).