申请人:Stensen Wenche
公开号:US20110172145A1
公开(公告)日:2011-07-14
The present invention relates to a compound of formula (I) AA-AA-AA-X—Y—Z wherein, in any order, 2 of said AA (amino acid) moieties are cationic amino acids and 1 of said AA is an amino acid with a lipophilic R group, the R group having 14-27 non-hydrogen atoms; X is a N atom, which may be substituted by a branched or unbranched C
1
-C
10
alkyl or aryl group which group may incorporate up to 2 heteroatoms selected from N, O and S; Y represents a group selected from —R
a
—R
b
—, —R
a
—R
b
—R
b
— and —R
b
—R
b
—R
a
— wherein R
a
is C, O, S or N, and R
b
is C; each of R
a
and R
b
may be substituted by C
1
-C
4
alkyl groups or unsubstituted; and Z is a group comprising 1 to 3 cyclic groups each of 5 or 6 non-hydrogen atoms, 2 or more of the cyclic groups may be fused and one or more of the cyclic groups may be substituted; the Z moiety incorporates a maximum of 15 non-hydrogen atoms; and wherein the bond between Y and Z is a covalent bond between R
a
or R
b
of Y and a non-hydrogen atom of one of the cyclic groups of Z. The invention further relates to formulations containing these compounds and their uses in therapy, particularly as antimicrobial or antitumoural agents.