| 摘要 |
Amphiphilic lipid compound having the formula: <IMAGE> (I) in which: R1 denotes a C7-C21 alkyl or alkenyl radical, R2 denotes a saturated or unsaturated C7-C31 hydrocarbon radical, COA denotes a group chosen from the following groups: a) COOM, M being H, Na, K, NH4 or a substituted ammonium ion derived from an amine, b) <IMAGE> B being a radical derived from mono- or polyhydroxylated primary or secondary amines and R denoting a hydrogen atom or a methyl, ethyl or hydroxyethyl radical, c) <IMAGE> Q denoting a substituted aminoalkyl or ammonioalkyl radical and R having the meaning indicated for b), and d) COOZ, Z representing the residue of a C3-C7 polyol, and a process for its preparation. Cosmetic or dermopharmaceutical composition comprising the said compound and especially an aqueous dispersion of liposomes. |
