Patent ID: 7667070

Claim:
A cationic lipophilic compound of formula (I): wherein: a) R 1 and R′ 1 are independently an alkyl chain, an alkenyl chain, or a polyalkenyl chain with from 10 to 24 carbon atoms, with any polyalkenyl chain having from 2 to 4 double links; b) R 2 is a hydrogen atom or an alkyl chain having from 1 to 4 carbon atoms; and c) R 3 is a group of formula (IIa): —(CH 2 ) n — or formula (IIb): —C(═NH)—NH—(CH 2 ) n — wherein: n is an integer equal to 0, 1, 2, 3 or 4; and d) A + is an organic cation; e) X − is an anion; wherein A is a cation of formula (IV): wherein: f) Z is N, P, or As; g) R 4 and R 5 are independently an alkyl chain with from 1 to 4 carbon atoms; h) R 6 is an alkyl chain with from 1 to 4 carbon atoms or is of formula (V): wherein: l) R 7 and R 8 are independently an alkyl chain having from 1 to 4 carbon atoms; and m) R 9 is a group of formula (VI): wherein: n) R 10 is —(CH 2 )n- where n is 0, 1, 2, 3, or 4; o) R 11 is H or an alkyl group with from 1 to 4 carbon atoms; and p) R 12 and R′ 12 are independently an alkyl chain, an alkenyl chain, or a polyalkenyl chain with from 10 to 24 carbon atoms, with any polyalkenyl chain having from 2 to 4 double links.