The present invention is related to a compound according to formula (I),wherein R1 and R2 are each and independently selected from the group comprising alkyl；n is any integer between 1 and 4；R3 is an acyl selected from the group comprising lysyl, ornithyl, 2,4-diaminobutyryl, histidyl and an acyl moiety according to formula (II),wherein m is any integer from 1 to 3 andY− is a pharmaceutically acceptable anion.
