| 摘要 |
<p>The invention relates to lipopeptides of the formula I, <IMAGE> (I) * = -R** = -R or -S*** = -R in which each of Ra1 and Rb1, independently of the other, represents an aliphatic or cycloaliphatic-aliphatic hydrocarbon radical having from 7 to 21 carbon atoms that is optionally substituted by oxygen functions, or one of the radicals Ra1-CO- and Rb1-CO- represents hydrogen and the other of the radicals Ra1-CO- and Rb1-CO- represents an acyl radical, wherein Ra1 and Rb1 have the meanings given above, R2 represents an aliphatic or cycloaliphatic-aliphatic hydrocarbon radical having from 1 to 21 carbon atoms that is optionally substituted by oxygen functions, n=0 or 1, As DEG represents a radical of the formula -O-Kw-CO- or -NH-Kw-CO- wherein Kw represents an aliphatic hydrocarbon radical having a maximum of 12 carbon atoms, As1 represents a D- or L- alpha -amino acid, each of Z1 and Z2, independently of the other, represents hydroxy or the N-terminal radical of a D- or L- alpha -aminocarboxylic acid, of an amino-lower alkanesulphonic acid or of a peptide having a maximum of 6 amino acids from the group consisting of D- or L- alpha -aminocarboxylic acids and amino-lower alkanesulphonic acids, and Z3 represents hydrogen or -CO-Z4 wherein Z4 represents hydroxy or the N-terminal radical of a D- or L- alpha -amino acid, of an amino-lower alkanesulphonic acid or of a peptide having a maximum of 6 amino acids from the group consisting of D- or L- alpha -aminocarboxylic acids and amino-lower alkanesulphonic acids, and the amides and esters of such compounds that contain carboxy groups. The novel lipopeptides have an immunity-stimulating action.</p> |
